Tuned fork from SheetJS Spreadsheet (with styles) data parser and writer
npm install xlsx-with-stylesjs
excelCell.s = {
fill: {
patternType: "none", // none / solid
fgColor: {rgb: "FF000000"},
bgColor: {rgb: "FFFFFFFF"}
},
font: {
name: 'Times New Roman',
sz: 16,
color: {rgb: "#FF000000"},
bold: false,
italic: false,
underline: false
},
border: {
top: {style: "thin", color: {auto: 1}},
right: {style: "thin", color: {auto: 1}},
bottom: {style: "thin", color: {auto: 1}},
left: {style: "thin", color: {auto: 1}}
}
};
`
Image example:js
var data = "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ws["!images"] = [{
name: 'image.png',
data: data,
opts: {base64: true},
type: "png",
position: {
type: 'twoCellAnchor',
attrs: {editAs: 'oneCell'},
from: {col: 3, row: 3},
to: {col: 6, row: 6}
}
}
];
`
JSFiddle: https://jsfiddle.net/1g24vowu/1/
SheetJS js-xlsx
Parser and writer for various spreadsheet formats. Pure-JS cleanroom
implementation from official specifications, related documents, and test files.
Emphasis on parsing and writing robustness, cross-format feature compatibility
with a unified JS representation, and ES3/ES5 browser compatibility back to IE6.
This is the community version. We also offer a pro version with performance
enhancements, additional features like styling, and dedicated support.
File format support for known spreadsheet data formats:
Graph of supported formats (click to show)
!circo graph of format support
Table of Contents
Expand to show Table of Contents
- Installation
* JS Ecosystem Demos
* Optional Modules
* ECMAScript 5 Compatibility
- Philosophy
- Parsing Workbooks
* Parsing Examples
* Streaming Read
- Working with the Workbook
* Parsing and Writing Examples
- Writing Workbooks
* Writing Examples
* Streaming Write
- Interface
* Parsing functions
* Writing functions
* Utilities
- Common Spreadsheet Format
* General Structures
* Cell Object
+ Data Types
+ Dates
* Sheet Objects
+ Worksheet Object
+ Chartsheet Object
+ Macrosheet Object
+ Dialogsheet Object
* Workbook Object
+ Workbook File Properties
* Workbook-Level Attributes
+ Defined Names
+ Workbook Views
+ Miscellaneous Workbook Properties
* Document Features
+ Formulae
+ Column Properties
+ Row Properties
+ Number Formats
+ Hyperlinks
+ Cell Comments
+ Sheet Visibility
+ VBA and Macros
- Parsing Options
* Input Type
* Guessing File Type
- Writing Options
* Supported Output Formats
* Output Type
- Utility Functions
* Array of Arrays Input
* Array of Objects Input
* HTML Table Input
* Formulae Output
* Delimiter-Separated Output
+ UTF-16 Unicode Text
* HTML Output
* JSON
- File Formats
* Excel 2007+ XML (XLSX/XLSM)
* Excel 2.0-95 (BIFF2/BIFF3/BIFF4/BIFF5)
* Excel 97-2004 Binary (BIFF8)
* Excel 2003-2004 (SpreadsheetML)
* Excel 2007+ Binary (XLSB, BIFF12)
* Delimiter-Separated Values (CSV/TXT)
* Other Workbook Formats
+ Lotus 1-2-3 (WKS/WK1/WK2/WK3/WK4/123)
+ Quattro Pro (WQ1/WQ2/WB1/WB2/WB3/QPW)
+ OpenDocument Spreadsheet (ODS/FODS)
+ Uniform Office Spreadsheet (UOS1/2)
* Other Single-Worksheet Formats
+ dBASE and Visual FoxPro (DBF)
+ Symbolic Link (SYLK)
+ Lotus Formatted Text (PRN)
+ Data Interchange Format (DIF)
+ HTML
+ Rich Text Format (RTF)
+ Ethercalc Record Format (ETH)
- Testing
* Node
* Browser
* Tested Environments
* Test Files
- Contributing
* OSX/Linux
* Windows
* Tests
- License
- References
Installation
In the browser, just add a script tag:
html
`
CDN Availability (click to show)
| CDN | URL |
|-----------:|:-------------------------------------------|
|
|
| jsDelivr | |
| CDNjs | |
| packd | | unpkg makes the latest version available at:`html
`
With npm:
bash
$ npm install xlsx
`With bower:
bash
$ bower install js-xlsx
`$3
directory includes sample projects for:angularjs
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- Other examples are included in the showcase.
$3
Optional features (click to show)
The node version automatically requires modules for additional features. Some
of these modules are rather large in size and are only needed in special
circumstances, so they do not ship with the core. For browser use, they must
be included directly:
html
`An appropriate version for each dependency is included in the dist/ directory.
The complete single-file version is generated at
A slimmer build with XLSX / HTML support is generated at
Webpack and Browserify builds include optional modules by default. Webpack can
be configured to remove support with
:`js
/ uncomment the lines below to remove support /
resolve: {
alias: { "./dist/cpexcel.js": "" } // <-- omit international support
}
`$3
Since the library uses functions like
, older browsers require
shims to provide missing functions.To use the shim, add the shim before the script tag that loads
xlsx.js:`html
`The script also includes
and IE_SaveFile for loading and saving
files in Internet Explorer versions 6-9. The xlsx.extendscript.js script
bundles the shim in a format suitable for Photoshop and other Adobe products.Philosophy
Philosophy (click to show)
Prior to SheetJS, APIs for processing spreadsheet files were format-specific.
Third-party libraries either supported one format, or they involved a separate
set of classes for each supported file type. Even though XLSB was introduced in
Excel 2007, nothing outside of SheetJS or Excel supported the format.
To promote a format-agnostic view, js-xlsx starts from a pure-JS representation
that we call the "Common Spreadsheet Format".
Emphasizing a uniform object representation enables new features like format
conversion (reading an XLSX template and saving as XLS) and circumvents the mess
of classes. By abstracting the complexities of the various formats, tools
need not worry about the specific file type!
A simple object representation combined with careful coding practices enables
use cases in older browsers and in alternative environments like ExtendScript
and Web Workers. It is always tempting to use the latest and greatest features,
but they tend to require the latest versions of browsers, limiting usability.
Utility functions capture common use cases like generating JS objects or HTML.
Most simple operations should only require a few lines of code. More complex
operations generally should be straightforward to implement.
Excel pushes the XLSX format as default starting in Excel 2007. However, there
are other formats with more appealing properties. For example, the XLSB format
is spiritually similar to XLSX but files often tend up taking less than half the
space and open much faster! Even though an XLSX writer is available, other
format writers are available so users can take advantage of the unique
characteristics of each format.
The primary focus of the Community Edition is correct data interchange, focused
on extracting data from any compatible data representation and exporting data in
various formats suitable for any third party interface.
Parsing Workbooks
For parsing, the first step is to read the file. This involves acquiring the
data and feeding it into the library. Here are a few common scenarios:
nodejs read a file (click to show)
readFile is only available in server environments. Browsers have no API for
reading arbitrary files given a path, so another strategy must be used.`js
if(typeof require !== 'undefined') XLSX = require('xlsx');
var workbook = XLSX.readFile('test.xlsx');
/ DO SOMETHING WITH workbook HERE /
`
Photoshop ExtendScript read a file (click to show)
wraps the File logic in Photoshop and other ExtendScript targets.
The specified path should be an absolute path:`js
#include "xlsx.extendscript.js"
/ Read test.xlsx from the Documents folder /
var workbook = XLSX.readFile(Folder.myDocuments + '/' + 'test.xlsx');
/ DO SOMETHING WITH workbook HERE /
` demo includes a more complex example.
Browser read TABLE element from page (click to show)
The
table_to_book and table_to_sheet utility functions take a DOM TABLE
element and iterate through the child nodes.`js
var workbook = XLSX.utils.table_to_book(document.getElementById('tableau'));
/ DO SOMETHING WITH workbook HERE /
`Multiple tables on a web page can be converted to individual worksheets:
js
/ create new workbook /
var workbook = XLSX.utils.book_new();/ convert table 'table1' to worksheet named "Sheet1" /
var ws1 = XLSX.utils.table_to_sheet(document.getElementById('table1'));
XLSX.utils.book_append_sheet(workbook, ws1, "Sheet1");
/ convert table 'table2' to worksheet named "Sheet2" /
var ws2 = XLSX.utils.table_to_sheet(document.getElementById('table2'));
XLSX.utils.book_append_sheet(workbook, ws2, "Sheet2");
/ workbook now has 2 worksheets /
`Alternatively, the HTML code can be extracted and parsed:
js
var htmlstr = document.getElementById('tableau').outerHTML;
var workbook = XLSX.read(htmlstr, {type:'string'});
`
Browser download file (ajax) (click to show)
Note: for a more complete example that works in older browsers, check the demo
at . The
demo
includes more examples with XMLHttpRequest and fetch.`js
var url = "http://oss.sheetjs.com/test_files/formula_stress_test.xlsx";/ set up async GET request /
var req = new XMLHttpRequest();
req.open("GET", url, true);
req.responseType = "arraybuffer";
req.onload = function(e) {
var data = new Uint8Array(req.response);
var workbook = XLSX.read(data, {type:"array"});
/ DO SOMETHING WITH workbook HERE /
}
req.send();
`
Browser drag-and-drop (click to show)
Drag-and-drop uses the HTML5
API.`js
function handleDrop(e) {
e.stopPropagation(); e.preventDefault();
var files = e.dataTransfer.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'}); / DO SOMETHING WITH workbook HERE /
};
reader.readAsArrayBuffer(f);
}
drop_dom_element.addEventListener('drop', handleDrop, false);
`
Browser file upload form element (click to show)
Data from file input elements can be processed using the same
API
as in the drag-and-drop example:`js
function handleFile(e) {
var files = e.target.files, f = files[0];
var reader = new FileReader();
reader.onload = function(e) {
var data = new Uint8Array(e.target.result);
var workbook = XLSX.read(data, {type: 'array'}); / DO SOMETHING WITH workbook HERE /
};
reader.readAsArrayBuffer(f);
}
input_dom_element.addEventListener('change', handleFile, false);
` demo shows an IE-compatible fallback scenario.More specialized cases, including mobile app file processing, are covered in the
included demos
$3
-
Note that older versions of IE do not support HTML5 File API, so the Base64 mode
is used for testing.
Get Base64 encoding on OSX / Windows (click to show)
On OSX you can get the Base64 encoding with:
`bash
$ `On Windows XP and up you can get the Base64 encoding using
:`cmd
> certutil -encode target_file target_file.b64
`(note: You have to open the file and remove the header and footer lines)
- XMLHttpRequest
$3
Why is there no Streaming Read API? (click to show)
The most common and interesting formats (XLS, XLSX/M, XLSB, ODS) are ultimately
ZIP or CFB containers of files. Neither format puts the directory structure at
the beginning of the file: ZIP files place the Central Directory records at the
end of the logical file, while CFB files can place the storage info anywhere in
the file! As a result, to properly handle these formats, a streaming function
would have to buffer the entire file before commencing. That belies the
expectations of streaming, so we do not provide any streaming read API.
When dealing with Readable Streams, the easiest approach is to buffer the stream
and process the whole thing at the end. This can be done with a temporary file
or by explicitly concatenating the stream:
Explicitly concatenating streams (click to show)
js
var fs = require('fs');
var XLSX = require('xlsx');
function process_RS(stream/:ReadStream/, cb/:(wb:Workbook)=>void/)/:void/{
var buffers = [];
stream.on('data', function(data) { buffers.push(data); });
stream.on('end', function() {
var buffer = Buffer.concat(buffers);
var workbook = XLSX.read(buffer, {type:"buffer"}); / DO SOMETHING WITH workbook IN THE CALLBACK /
cb(workbook);
});
}
`More robust solutions are available using modules like
.
Writing to filesystem first (click to show)
tempfile to generate file names:`js
var fs = require('fs'), tempfile = require('tempfile');
var XLSX = require('xlsx');
function process_RS(stream/:ReadStream/, cb/:(wb:Workbook)=>void/)/:void/{
var fname = tempfile('.sheetjs');
console.log(fname);
var ostream = fs.createWriteStream(fname);
stream.pipe(ostream);
ostream.on('finish', function() {
var workbook = XLSX.readFile(fname);
fs.unlinkSync(fname); / DO SOMETHING WITH workbook IN THE CALLBACK /
cb(workbook);
});
}
`Working with the Workbook
The full object format is described later in this README.
Reading a specific cell (click to show)
This example extracts the value stored in cell A1 from the first worksheet:
js
var first_sheet_name = workbook.SheetNames[0];
var address_of_cell = 'A1';/ Get worksheet /
var worksheet = workbook.Sheets[first_sheet_name];
/ Find desired cell /
var desired_cell = worksheet[address_of_cell];
/ Get the value /
var desired_value = (desired_cell ? desired_cell.v : undefined);
`
Adding a new worksheet to a workbook (click to show)
to make a
sheet and XLSX.utils.book_append_sheet to append the sheet to the workbook:`js
var ws_name = "SheetJS";/ make worksheet /
var ws_data = [
[ "S", "h", "e", "e", "t", "J", "S" ],
[ 1 , 2 , 3 , 4 , 5 ]
];
var ws = XLSX.utils.aoa_to_sheet(ws_data);
/ Add the worksheet to the workbook /
XLSX.utils.book_append_sheet(wb, ws, ws_name);
`
Creating a new workbook from scratch (click to show)
The workbook object contains a
array of names and a Sheets object
mapping sheet names to sheet objects. The XLSX.utils.book_new utility function
creates a new workbook object:`js
/ create a new blank workbook /
var wb = XLSX.utils.book_new();
`The new workbook is blank and contains no worksheets. The write functions will
error if the workbook is empty.
$3
- read + modify + write files
- node
The node version installs a command line tool
which can read spreadsheet
files and output the contents in various formats. The source is available at
xlsx.njs in the bin directory.Some helper functions in
XLSX.utils generate different views of the sheets:-
XLSX.utils.sheet_to_csv generates CSV
- XLSX.utils.sheet_to_txt generates UTF16 Formatted Text
- XLSX.utils.sheet_to_html generates HTML
- XLSX.utils.sheet_to_json generates an array of objects
- XLSX.utils.sheet_to_formulae generates a list of formulaeWriting Workbooks
For writing, the first step is to generate output data. The helper functions
write and writeFile will produce the data in various formats suitable for
dissemination. The second step is to actual share the data with the end point.
Assuming workbook is a workbook object:
nodejs write a file (click to show)
XLSX.writeFile uses fs.writeFileSync in server environments:`js
if(typeof require !== 'undefined') XLSX = require('xlsx');
/ output format determined by filename /
XLSX.writeFile(workbook, 'out.xlsb');
/ at this point, out.xlsb is a file that you can distribute /
`
Photoshop ExtendScript write a file (click to show)
wraps the File logic in Photoshop and other ExtendScript targets.
The specified path should be an absolute path:`js
#include "xlsx.extendscript.js"
/ output format determined by filename /
XLSX.writeFile(workbook, 'out.xlsx');
/ at this point, out.xlsx is a file that you can distribute /
` demo includes a more complex example.
Browser add TABLE element to page (click to show)
The
sheet_to_html utility function generates HTML code that can be added to
any DOM element.`js
var worksheet = workbook.Sheets[workbook.SheetNames[0]];
var container = document.getElementById('tableau');
container.innerHTML = XLSX.utils.sheet_to_html(worksheet);
`
Browser upload file (ajax) (click to show)
A complete example using XHR is included in the XHR demo, along
with examples for fetch and wrapper libraries. This example assumes the server
can handle Base64-encoded files (see the demo for a basic nodejs server):
js
/ in this example, send a base64 string to the server /
var wopts = { bookType:'xlsx', bookSST:false, type:'base64' };var wbout = XLSX.write(workbook,wopts);
var req = new XMLHttpRequest();
req.open("POST", "/upload", true);
var formdata = new FormData();
formdata.append('file', 'test.xlsx'); // <-- server expects
file to hold name
formdata.append('data', wbout); // <-- data holds the base64-encoded data
req.send(formdata);
`
Browser save file (click to show)
wraps a few techniques for triggering a file save:-
URL browser API creates an object URL for the file, which the library uses
by creating a link and forcing a click. It is supported in modern browsers.
- msSaveBlob is an IE10+ API for triggering a file save.
- IE_FileSave uses VBScript and ActiveX to write a file in IE6+ for Windows
XP and Windows 7. The shim must be included in the containing HTML page.There is no standard way to determine if the actual file has been downloaded.
`js
/ output format determined by filename /
XLSX.writeFile(workbook, 'out.xlsb');
/ at this point, out.xlsb will have been downloaded /
`
Browser save file (compatibility) (click to show)
techniques work for most modern browsers as well as older IE.
For much older browsers, there are workarounds implemented by wrapper libraries.FileSaver.js implements saveAs.
Note: XLSX.writeFile will automatically call saveAs if available.`js
/ bookType can be any supported output type /
var wopts = { bookType:'xlsx', bookSST:false, type:'array' };var wbout = XLSX.write(workbook,wopts);
/ the saveAs call downloads a file on the local machine /
saveAs(new Blob([wbout],{type:"application/octet-stream"}), "test.xlsx");
` uses a Flash SWF button
to generate local files, suitable for environments where ActiveX is unavailable:`js
Downloadify.create(id,{
/ other options are required! read the downloadify docs for more info /
filename: "test.xlsx",
data: function() { return XLSX.write(wb, {bookType:"xlsx", type:'base64'}); },
append: false,
dataType: 'base64'
});
` demo shows an IE-compatible fallback scenario.The included demos cover mobile apps and other special deployments.
$3
- exporting an HTML table
- generates a simple file
$3
The streaming write functions are available in the
XLSX.stream object. They
take the same arguments as the normal write functions but return a Readable
Stream. They are only exposed in NodeJS.-
XLSX.stream.to_csv is the streaming version of XLSX.utils.sheet_to_csv.
- XLSX.stream.to_html is the streaming version of XLSX.utils.sheet_to_html.
- XLSX.stream.to_json is the streaming version of XLSX.utils.sheet_to_json.
nodejs convert to CSV and write file (click to show)
`js
var output_file_name = "out.csv";
var stream = XLSX.stream.to_csv(worksheet);
stream.pipe(fs.createWriteStream(output_file_name));
`
nodejs write JSON stream to screen (click to show)
js
/ to_json returns an object-mode stream /
var stream = XLSX.stream.to_json(worksheet, {raw:true});/ the following stream converts JS objects to text via JSON.stringify /
var conv = new Transform({writableObjectMode:true});
conv._transform = function(obj, e, cb){ cb(null, JSON.stringify(obj) + "\n"); };
stream.pipe(conv); conv.pipe(process.stdout);
` pipes write streams to nodejs response.
Interface
is the exposed variable in the browser and the exported node variableXLSX.version is the version of the library (added by the build script).XLSX.SSF is an embedded version of the format library.$3
XLSX.read(data, read_opts) attempts to parse data.XLSX.readFile(filename, read_opts) attempts to read filename and parse.Parse options are described in the Parsing Options section.
$3
XLSX.write(wb, write_opts) attempts to write the workbook wb attempts to write wb to filename.
In browser-based environments, it will attempt to force a client-side download.XLSX.writeFileAsync(filename, wb, o, cb) attempts to write wb to filename.
If o is omitted, the writer will use the third argument as the callback.XLSX.stream contains a set of streaming write functions.Write options are described in the Writing Options section.
$3
Utilities are available in the
XLSX.utils object and are described in the
Utility Functions section:Importing:
-
aoa_to_sheet converts an array of arrays of JS data to a worksheet.
- json_to_sheet converts an array of JS objects to a worksheet.
- table_to_sheet converts a DOM TABLE element to a worksheet.
- sheet_add_aoa adds an array of arrays of JS data to an existing worksheet.
- sheet_add_json adds an array of JS objects to an existing worksheet.
Exporting:
-
sheet_to_json converts a worksheet object to an array of JSON objects.
- sheet_to_csv generates delimiter-separated-values output.
- sheet_to_txt generates UTF16 formatted text.
- sheet_to_html generates HTML output.
- sheet_to_formulae generates a list of the formulae (with value fallbacks).
Cell and cell address manipulation:
-
format_cell generates the text value for a cell (using number formats).
- encode_row / decode_row converts between 0-indexed rows and 1-indexed rows.
- encode_col / decode_col converts between 0-indexed columns and column names.
- encode_cell / decode_cell converts cell addresses.
- encode_range / decode_range converts cell ranges.Common Spreadsheet Format
js-xlsx conforms to the Common Spreadsheet Format (CSF):
$3
Cell address objects are stored as
{c:C, r:R} where C and R are 0-indexed
column and row numbers, respectively. For example, the cell address B5 is
represented by the object {c:1, r:4}.Cell range objects are stored as
{s:S, e:E} where S is the first cell and
E is the last cell in the range. The ranges are inclusive. For example, the
range A3:B7 is represented by the object {s:{c:0, r:2}, e:{c:1, r:6}}.
Utility functions perform a row-major order walk traversal of a sheet range:`js
for(var R = range.s.r; R <= range.e.r; ++R) {
for(var C = range.s.c; C <= range.e.c; ++C) {
var cell_address = {c:C, r:R};
/ if an A1-style address is needed, encode the address /
var cell_ref = XLSX.utils.encode_cell(cell_address);
}
}
`$3
Cell objects are plain JS objects with keys and values following the convention:
| Key | Description |
| --- | ---------------------------------------------------------------------- |
|
| raw value (see Data Types section for more info) |
| w | formatted text (if applicable) |
| t | type: b Boolean, e Error, n Number, d Date, s Text, z Stub |
| f | cell formula encoded as an A1-style string (if applicable) |
| F | range of enclosing array if formula is array formula (if applicable) |
| r | rich text encoding (if applicable) |
| h | HTML rendering of the rich text (if applicable) |
| c | comments associated with the cell |
| z | number format string associated with the cell (if requested) |
| l | cell hyperlink object (.Target holds link, .Tooltip is tooltip) |
| s | the style/theme of the cell (if applicable) |Built-in export utilities (such as the CSV exporter) will use the
w text if it
is available. To change a value, be sure to delete cell.w (or set it to
undefined) before attempting to export. The utilities will regenerate the w
text from the number format () and the raw value if possible.The actual array formula is stored in the
f field of the first cell in the
array range. Other cells in the range will omit the f field.#### Data Types
The raw value is stored in the
v value property, interpreted based on the t
type property. This separation allows for representation of numbers as well as
numeric text. There are 6 valid cell types:| Type | Description |
| :--: | :-------------------------------------------------------------------- |
|
| Boolean: value interpreted as JS boolean |
| e | Error: value is a numeric code and w property stores common name ** |
| n | Number: value is a JS number ** |
| d | Date: value is a JS Date object or string to be parsed as Date ** |
| s | Text: value interpreted as JS string and written as text ** |
| z | Stub: blank stub cell that is ignored by data processing utilities ** |
Error values and interpretation (click to show)
| Value | Error Meaning |
| -----: | :-------------- |
|
0x00 | #NULL! |
| 0x07 | #DIV/0! |
| 0x0F | #VALUE! |
| 0x17 | #REF! |
| 0x1D | #NAME? |
| 0x24 | #NUM! |
| 0x2A | #N/A |
| 0x2B | #GETTING_DATA |Type
n is the Number type. This includes all forms of data that Excel stores
as numbers, such as dates/times and Boolean fields. Excel exclusively uses data
that can be fit in an IEEE754 floating point number, just like JS Number, so the
v field holds the raw number. The w field holds formatted text. Dates are
stored as numbers by default and converted with XLSX.SSF.parse_date_code.Type
d is the Date type, generated only when the option cellDates is passed.
Since JSON does not have a natural Date type, parsers are generally expected to
store ISO 8601 Date strings like you would get from date.toISOString(). On
the other hand, writers and exporters should be able to handle date strings and
JS Date objects. Note that Excel disregards timezone modifiers and treats all
dates in the local timezone. The library does not correct for this error.Type
s is the String type. Values are explicitly stored as text. Excel will
interpret these cells as "number stored as text". Generated Excel files
automatically suppress that class of error, but other formats may elicit errors.Type
z represents blank stub cells. They are generated in cases where cells
have no assigned value but hold comments or other metadata. They are ignored by
the core library data processing utility functions. By default these cells are
not generated; the parser sheetStubs option must be set to true.
#### Dates
Excel Date Code details (click to show)
By default, Excel stores dates as numbers with a format code that specifies date
processing. For example, the date
19-Feb-17 is stored as the number 42785
with a number format of . The SSF module understands number formats
and performs the appropriate conversion.XLSX also supports a special date type
d where the data is an ISO 8601 date
string. The formatter converts the date back to a number.The default behavior for all parsers is to generate number cells. Setting
cellDates to true will force the generators to store dates.
Time Zones and Dates (click to show)
Excel has no native concept of universal time. All times are specified in the
local time zone. Excel limitations prevent specifying true absolute dates.
Following Excel, this library treats all dates as relative to local time zone.
Epochs: 1900 and 1904 (click to show)
Excel supports two epochs (January 1 1900 and January 1 1904), see
"1900 vs. 1904 Date System" article.
The workbook's epoch can be determined by examining the workbook's
wb.Workbook.WBProps.date1904 property:`js
!!(((wb.Workbook||{}).WBProps||{}).date1904)
`$3
Each key that does not start with
maps to a cell (using A-1 notation)sheet[address] returns the cell object for the specified address.Special sheet keys (accessible as
sheet[key], each starting with !):-
sheet['!ref']: A-1 based range representing the sheet range. Functions that
work with sheets should use this parameter to determine the range. Cells that
are assigned outside of the range are not processed. In particular, when
writing a sheet by hand, cells outside of the range are not included Functions that handle sheets should test for the presence of
!ref field.
If the !ref is omitted or is not a valid range, functions are free to treat
the sheet as empty or attempt to guess the range. The standard utilities that
ship with this library treat sheets as empty (for example, the CSV output is
empty string). When reading a worksheet with the
sheetRows property set, the ref parameter
will use the restricted range. The original range is set at ws['!fullref']-
: Object representing the page margins. The default values
follow Excel's "normal" preset. Excel also has a "wide" and a "narrow" preset
but they are stored as raw measurements. The main properties are listed below:
Page margin details (click to show)
| key | description | "normal" | "wide" | "narrow" |
|----------|------------------------|:---------|:-------|:-------- |
|
left | left margin (inches) | 0.7 | 1.0 | 0.25 |
| right | right margin (inches) | 0.7 | 1.0 | 0.25 |
| top | top margin (inches) | 0.75 | 1.0 | 0.75 |
| bottom | bottom margin (inches) | 0.75 | 1.0 | 0.75 |
| header | header margin (inches) | 0.3 | 0.5 | 0.3 |
| footer | footer margin (inches) | 0.3 | 0.5 | 0.3 |`js
/ Set worksheet sheet to "normal" /
ws["!margins"]={left:0.7, right:0.7, top:0.75,bottom:0.75,header:0.3,footer:0.3}
/ Set worksheet sheet to "wide" /
ws["!margins"]={left:1.0, right:1.0, top:1.0, bottom:1.0, header:0.5,footer:0.5}
/ Set worksheet sheet to "narrow" /
ws["!margins"]={left:0.25,right:0.25,top:0.75,bottom:0.75,header:0.3,footer:0.3}
`
#### Worksheet Object
In addition to the base sheet keys, worksheets also add:
-
: array of column properties objects. Column widths are actually
stored in files in a normalized manner, measured in terms of the "Maximum
Digit Width" (the largest width of the rendered digits 0-9, in pixels). When
parsed, the column objects store the pixel width in the wpx field, character
width in the wch field, and the maximum digit width in the MDW field.-
ws['!rows']: array of row properties objects as explained later in the docs.
Each row object encodes properties including row height and visibility.-
ws['!merges']: array of range objects corresponding to the merged cells in
the worksheet. Plain text formats do not support merge cells. CSV export
will write all cells in the merge range if they exist, so be sure that only
the first cell (upper-left) in the range is set.
- ws['!viewPane']: object representing Worksheet View pane
| Property Name | Default | Description |
| :------------ | --------: | :---------- |
| state | 'split' | Type of pane: 'split' \|\| 'frozen' \|\| 'frozenSplit' |
| xSplit | 0 | For 'split', horizontal position of the splitter, in 1/20th of a point. For 'frozen' and 'frozenSplit', amount of frozen columns. |
| ySplit | 0 | For 'split', vertical position of the splitter, in 1/20th of a point. For 'frozen' and 'frozenSplit', amount of frozen rows. |
| topLeftCell | special | The cell to be top-left in the bottom-right pane. For 'frozen' and 'frozenSplit', defaults to the cell in first unfrozen column and first unfrozen row |
| activePane | undefined | 'topLeft' \|\| 'topRight' \|\| 'bottomLeft' \|\| 'bottomRight' \|\| |-
ws['!outline']: configure how outlines should behave. Options default to
the default settings in Excel 2019:| key | Excel feature | default |
|:----------|:----------------------------------------------|:--------|
|
above | Uncheck "Summary rows below detail" | false |
| left | Uncheck "Summary rows to the right of detail" | false |-
ws['!protect']: object of write sheet protection properties. The password
key specifies the password for formats that support password-protected sheets
(XLSX/XLSB/XLS). The writer uses the XOR obfuscation method. The following
keys control the sheet protection -- set to to enable a feature when
sheet is locked or set to true to disable a feature:
Worksheet Protection Details (click to show)
| key | feature (true=disabled / false=enabled) | default |
|:----------------------|:----------------------------------------|:-----------|
|
selectLockedCells | Select locked cells | enabled |
| selectUnlockedCells | Select unlocked cells | enabled |
| formatCells | Format cells | disabled |
| formatColumns | Format columns | disabled |
| formatRows | Format rows | disabled |
| insertColumns` |