Hi
".... how to recover an overwritten file,..."
EDITED.
OOps! I am afraid you can't - directly. If you have overwritten it, it has been resaved (in this case with a blank project) with the same name, and the original has been removed.
The project (.vpj) files are essentially text files and as such are presumably flagged as deleted and rewritten. Windows will go some way to prevent some text and image files etc with same names being overwritten by adding a suffix to subsequent files..VP doesn't do this as it expects you to Save project as.. when you want to save an interim copy of the project with a different name and so retaining the first file which you may want to revert to. The "Save project" option doesn't give the option of stopping the process either, it just does it.
An "Are you sure?" warning might be a possible addition to future versions of VP.
However, I tried to see if one could reverse the procedure using a third party recovery program.to restore my "lost" .vpj file having deliberately overwritten it with a new "Save project" choice.
The program DID find the deleted file (but gave it a different name) so it simply loaded it back when I requested it. So...It looks like it could be restored provided the deleted file's disc space has not been overwritten by new data.
I used a Piriform freeware program called Recuva. If you want to try it, the overwritten .vpj file is flagged as having been deleted from the PC Dustbin, although you don't actually see this.
Nat