🚀 : If you specifically need legacy software for a "retro" PC project, consider checking the Internet Archive, which sometimes hosts archived copies of software for historical preservation purposes, though you still need a valid license key to use them.
: For a purely cloud-based experience, Google Docs and Sheets provide seamless collaboration and are free for personal use.
If you need a productivity suite without the price tag, there are much safer and more capable options than hunting for an old Office XP installer.