I'm currently using PHP with the PEAR extension, as well as the Spreadsheet_Excel_Writer package. I am able create a new excel file with PHP and save it to disk, but I can't find a stable Excel reader package.
Even if I do find a valid reader package I don't think this will be suitable as I want to be able to modify a complex excel document which contains its own formulas and graphs(on seperate spreadsheets) based on the content already saved in the data table.
Ideally, I'd like to enter data from the browser which will then, with PHP, modify only certain cells and then save the file again, the excel document itself will then update its own graphs etc. based on the modified data in the table.
Any ideas? Or have more experience with PEAR and know of packages for working with excel documents in this manner?
Thanx a lot!