File-Extensions.org forum

Have used TurboTax Deluxe/Premier from 2005-2013...no issues other than if you click on the saved tax files, you will not be able to open them...corrupts them for some reason and I've not found a fix...it's a known issue.

Suggesting this as a new file extension. Intuit TurboTax files are saved with this extension if the file is not converted (or does not convert) to .pdf files.