Since Excel 2011 is not a Windows application, you should look for these versions that are fully supported by Windows XP:
Because Microsoft no longer sells these legacy versions, you must find them through third-party channels:
This is the latest and "definitive" version of Office that runs on Windows XP Service Pack 3 (SP3) . It includes modern features like the "ribbon" interface .
Another stable choice for XP, offering full compatibility with the newer .xlsx file formats .
If you already have Office 2003 , you can download the Microsoft Office Compatibility Pack to open, edit, and save files created in newer versions of Excel . Why You Can't Use Excel 2011
Search sites like Amazon or eBay for physical installation media (CDs) or unused product keys .