There is only one file type that uses the .TT13 extension:
TurboTax Canada 2013 Tax Return
Tax return created with the Canadian version of TurboTax 2013; includes Canadian tax forms and information entered by the user; may also include provincial forms for a specific Canadian province.
TT13 files contain tax information for the 2013 tax year, which means they are typically created in 2014. When you complete a tax return in TurboTax, you can file it within the program or print and mail the official tax forms.
NOTE: The previous version of TurboTax Canada (2012) saved files with a .TT12 file extension.
|Intuit Canada TurboTax||Commercial|
Updated: June 6, 2014