While the full desktop suite usually requires a purchase, you can use these official methods to access it for free:
Students and teachers at eligible institutions can often download the full suite for free by entering their school email at the Office 365 Education page. microsoft office free download for windows 7 64-bit
You can sign up for a one-month free trial of Microsoft 365 Family to download the desktop apps, though you must cancel before the month ends to avoid charges. Best Free Alternatives for Windows 7 While the full desktop suite usually requires a