When using the desktop program, only you have a copy of your tax file. It is not uploaded to the "cloud", you are responsible for safekeeping and backups. Use the above comments to help locate the file. If you can't find it, you will have to do without. If you need a record of what you filed and didn't save a printed copy or PDF, you can get a transcript from the IRS.
https://www.irs.gov/Individuals/Get-Transcript
