How to restore a Google file if deleted, from the trash too, but is there an offline version?

Question

Google Drive

there is an offline version of the document on a smartphone, I can restore it manually, but there are a lot of formulas, it will take a lot of time, it does not allow saving the file, as well as exporting it to another format, who will advise what?

Answer 1

in any way
the pointer is deleted
only anew