Microsoft recentlypublishedan advisory for a glitch that causes Word for Microsoft 365 to accidentally delete files.
The company is likely working on a patch, but users should exercise caution when closing the program.
Until an update resolves the issue, the simplest mitigation is to remember to manually save after each edit.

Users who mistakenly encounter the problem can also restore the file from the recycle bin.
The setting is under File > Options > Save.
Microsoft Office 2024launchedearlier this month at a $149 MSRP.
Microsoft plans to continue releasing standalone versions of Office.