Cant open my glyphs file for school anymore

I am unable to open my glyphs file (which I made on another Mac at school and just copied onto my ssd) on my Mac at home.

When I try to open this file, it says ‘The document Welded.glyphs could not be opened’.

I have to change a few things in glyphs and I need to make a type specimen due to this Wednesday. I would love to finish my glyphs work today so please please please someone help me!!!

I also have tried opening it with right click>open with> glyphs mini and opening glyphs then using file>open>Welded.glyphs

Could you send me the file in a private message? I can have a look to see what might be wrong.

Solved: the file format was to to 3, but Glyphs Mini needs format 2.