If the file is corrupted then there isn’t much that can be done with it period. If you can’t open it, it’s useless, and any copies you make of it will likewise be useless. Now, if you actually had a valid saved file that was capable of being opened (the “Save” command is in the “File” menu, though most programs will ask you if you want to save your un-saved work when you quit them) then sending it as an e-mail attachment if the easiest way to go… but let’s get a valid, openable file first ;)