ADDENDUM:
Also, if you find a tilde file (with an~), e.g. ~taxreturn.tax2024, that is a temporary backup copy that TurboTax creates every so often. Sometimes that's helpful in recovering a file.
And if you have multiple Windows user accounts on your computer, you might search in each user account. Sometimes a user tries to open the program and work on it in the wrong Windows user account.
