If you used the Desktop program you need the .tax2024 data file to open in the 2024 Desktop program. Search for the .tax2014 file on your computer or any backups you have. If you used the Desktop installed program then your return was not saved Online.
Did you search your whole computer for all files ending in .tax2024 etc?And check the recycle bin and your backups. Check in One Drive, Drop Box, etc. It should be in your Documents then in the Turbo Tax folder. Also if you have multiple Windows user accounts, log into each one and do the search for the *.tax2024 data file from within each one and checking the Recycle Bin in each one.
If you don't have the main .tax file you might have one that starts with a Tilde sign ~ like "~your name.tax2024". That file is if your computer crashes or your real file gets lost or deleted or corrupt so you can restore
