Corrupted?

When trying to open a file that I’ve been working on, I get “The document could not be opened. The file is corrupted. You can try to fix it in a text editor.”

Now I have no idea what exactly I would be fixing or why I have to do this. What now? I spent a fair amount of time on this file.

Hi,

Glyphs files are text files. So if you have a good Text editor, like TextMate or Smultron, you can open the file and see what is wrong. If your not familiar with this stuff, you can send me the file and I have a look.

Georg