The term "Pre-Cracked" indicates that the software has been modified by a third party to bypass Microsoft's official activation. Security experts from Reddit's Cybersecurity community and Microsoft Support warn of several dangers: What's new in Office 2021 - Microsoft Support

: Includes the XLOOKUP function for easier data retrieval and Dynamic Arrays (e.g., FILTER, SORT, UNIQUE) that allow one formula to return multiple values.

: Features an improved Record Slide Show which now supports presenter video, ink, and laser pointer recording.