[TYPO3-english] Edit file after upload in TYPO3 backend

[Mikel]

But very complicated to develop :-)
You will need appropriate libraries on the server to handle and 
manipulate Excel files.

There is a PHP library which might help you --> 
https://github.com/PHPOffice/PHPExcel

Mikel

> I need to split it up so that every sheet in the file is converted to 
> csv-files that is saved on the server.
> I know all this can be done before uploading the Excel-file, but it is 
> much easier for the user if it is done when uploading the Excel file 
> to TYPO3.
>