SheetJS

The SheetJS Community Edition offers battle-tested open-source solutions for
extracting useful data from almost any complex spreadsheet and generating new
spreadsheets that will work with legacy and modern software alike.

SheetJS Pro offers solutions beyond data processing:
Edit complex templates with ease; let out your inner Picasso with styling; make
custom sheets with images/graphs/PivotTables; evaluate formula expressions and
port calculations to web apps; automate common spreadsheet tasks, and much more!

Documentation

- API and Usage Documentation

- Downloadable Scripts and Modules

Constellation

- : File Format Notes

- ssf: Format data using ECMA-376 spreadsheet format codes

- xlsx-cli: NodeJS command-line tool for processing files

- cfb: Container (OLE/ZIP) file
processing library

- codepage: Legacy text
encodings for XLS and other legacy spreadsheet formats

- dta: Stata DTA file processor

- test_files: Test files and various
plaintext baselines.

License

Please consult the attached LICENSE file for details. All rights not explicitly
granted by the Apache 2.0 License are reserved by the Original Author.