: Compressed files from unofficial sources frequently contain malware or unauthorized scripts.

: If you have a new product key, visit setup.office.com to link the key to your account and download the official installer. Risks of Using Third-Party ".rar" Files

: Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Access, and Microsoft Teams.

: Unofficial builds may be missing updates or include modified system files that lead to crashes.

If you already have a product key or a registered account, you can avoid risky "rar" downloads by using these verified paths: