Remove the file update

I’ve updated the source file, and added some incorrect strings
Now I want to restore this file to the previous state, but there is no “undo” in activity tab
I can see only “diff” button with the list of changed strings

Is there another way to restore the source file?

@M.Dudley you can restore your source file to the previous revision in the Content tab > Files section. Click on the revision number on the needed file to open the Revisions dialog.

For more details, check out the following article: Files Management | Crowdin Documentation