How to recover a deleted excel file on iPad

I have accidentally deleted an excel file from my iPad Pro (3rd gen) and would like to know if there is a way to recover it. Strangely enough, when I tap on the excel icon, I get the name of the file that I then choose to open. This produces an error message “cant open file - something went wrong .....”

As it is a very important file, I would be happy for any help on the matter.

Thanks