Error opening project

Hello, I recently tried to open a project of mine and it won’t open. Pop up says error opening project. I am typically very diligent about backing up my work, however, I made some significant changes between backups that I am hoping are not lost… Is there some way to still open the file? Why would the project suddenly become corrupt??

We use the archiving function a lot because we ran into this aswell quite often. Since the latest software version, the problem seems to be solved… So update your software. If you save uncompressed, you can sometimes scan the xml files to see if something looks strange. If you saved it compressed or can’t find the corrupt file, I’m afraid you lost the changes. Arne