Excel file accidentally deleted and now I can’t recover it

They do have backups - those backups last 30 days after which they arent recoverable. Even a day or so over is not recoverable. Think of it from the legal side for a moment, they tell everybody the files are removed and if they then didnt thats a huge breach of trust etc. 

Hi Mark! thanks for your reply. Yes, from that point of view, it´s correct they delete it just in time qhen the 30 days expires. It has it legal side as you said.

Its always possible to try, however realistically if you've been using your hard drive since you deleted it chances are it wouldnt be recoverable now. 

Best thing to do is have a google search for options 

I´ve been trying but with not much success. It is a mess because I didn´t know how the file ended up deleted, but it is what it is...

Any connected devices that havent sync'd the deleted item? 

In your recycle / trash can on your local device?

I had an old smartphone I changed a month and a half ago. I´va started it with no internet connection and the file was  there. But as it is the smartphone app, I couldn´t copy the file or transfer it or browse into the internal files of the app to search for it. I´ve tried copying it with other name or changing the name, but just in the moment i´ve given it access to internet to complete the action, the file disappeared :(

I will try other things but it is a great dissaster to lose that file (A lesson for the future, more backups copies...)