I can't open my Excel file

[ashley12]

I have a really important Excel file. But I can't open it now. I can open other files normally. When I try to open it it, nothing happen. But the weird thing is Excel acts as if the file is opened. For example if I click on another copy with the same name it would say "Can't open 2 files with the same name". Has anyone encountered this problem?

 

[ashley12]

Never mind I solve it. I go View -> Unhide (someone in my team must've hid it by accident)