Creating Excel (.xlsx) files in Cocoa

Question

I\'m writing a Cocoa application and I\'m trying to export to the Excel XML format (ISO/IEC 29500-1) which is basically a zip file with a bunch of XML files in it named with

Answer 1

I've worked with the OpenOffice API and it works great. I would suggest you work with that to create your Excel files. If you don't have time time/patience to do that, a workaround could be to have 2 links to export files, the XLSX version hack for the Excels of the world and then a separate exported CSV file for the Numbers application.