College students can now get microsoft office for free
Just go here and sign up with your college email. You can install it on up to 5 PCs or Macs and on other mobile devices, including Windows tablets and iPads.
You can also get Open Office, which is open source and completely free (for writers and the like if you aren’t a student). It allows you to save everything in the same formats as Microsoft Office as well so you could say, stick a file on a USB to use on another computer that has MS Office to continue your work.