How to amend previous tax return with .tax2018 file but with the software uninstalled? Is there a way to download the software and load the file?

I filed 2018 tax return with TurboTax (I installed the software from a CD and stored a copy for .tax2018 file). However, I already uninstall the software and lost the CD. I recently found I make a mistake in the tax return and would like to amend it. Is there a way to load the local tax file somewhere, e.g., by downloading the software again locally?