An H17 file is a tax return created by the 2017 version of H&R Block Canada, a tax program used to prepare taxes in Canada. It contains Canadian federal income tax forms and other tax data such as personal information and income earned.

The H17 file is created by H&R Block Canada when you save your tax return. It allows you to save your tax return progress so you can resume it at a later time. The H17 file is mainly opened with the H&R Block Canada Tax Software desktop application but it can also be uploaded to H&R Block Canada Online and viewed. NOTE: H&R Block Canada tax return files reflect the year for which they contain tax data. The .H16 file contains tax return data for 2016, the .H15 file contains tax return data for 2015, and so on.