There is an isssue of file corrupt, after edit the file and try to save it. How to recover the corrupted file?

For the reference check the github issue
File corrupt

Hello @jennie0123

Provided link returns 404 (not found), please double check its correctness.
In general, describe the issue that you are facing in more details. Also, share what version of Desktop Editors you are using.

Hello @Constantine,
https://github.com/ONLYOFFICE/DesktopEditors/issues/1339

Check this issue for the reference.
Version of desktop editor - ONLYOFFICE Desktop Editors version 7.4.1.36 (deb)

Hello @maxj

I can see that you have created a separate thread with the same link:

Please do not duplicate links in multiple threads considering the fact that the issue of the original poster may not be the same as yours.