Thank you very much for all the advice. Previously the same thing had already happened to me, that's why I have some copies saved, I just wanted to recover the last part since it had cost me my back... but it's ok haha.

Hi guys. i need help with these two problems. The first one is the long wait to open the file and it keeps for hours with "opening document". The second one is the error "Could not open file" very well known but as I don't have the autosave I don't know what I can do. The file is...