List of known file extensions and their MIME types
npm install ext-list> Return a list of known file extensions and their MIME types
```
$ npm install ext-list
`js
const extList = require('ext-list');
extList();
//=> Map {'123' => 'application/vnd.lotus-1-2-3', 'ez' => 'application/andrew-inset', ...}
`
Returns a Map` with the extensions as keys and their content types as values.
MIT © Kevin Mårtensson