How can I retrieve a word file I mistakenly overwrote? URGENT

I mistakenly overwrote a odt file last week. How can I retrieve the old file back. It’s urgent. Please help.

Please do not login as a new user (with 4 minutes gap between your 2 same questions), as your first question was already answered there → how can I find my deleted part back?
Roughly it’s saying Once you have closed the LO program you have lost all the history