WPS Office : A free-to-use suite that looks and feels very similar to Microsoft Office.

If you want the full desktop experience without the Microsoft cost, these suites are fully compatible with .docx , .xlsx , and .pptx files: LibreOffice : A powerful, free, and open-source suite.

It’s completely legal, always up-to-date, and includes cloud storage via OneDrive. 2. Microsoft 365 Developer Program