@kavitatul TurboTax DIY Online is based off of Profile, our software for tax professionals, not TurboTax Desktop, so the return files it makes in the backend can't be opened with TurboTax Desktop.
You can still download a PDF archive of your TurboTax Online return, in fact the PDFs will be stored for up to 7 years on our secure servers. You can also ReFILE, review, and create new returns for 3 tax years - The current year, and the 2 prior years. And you can always get your previously filed returns from the CRA, right from MyAccount. So your data is not locked away from you at any point.
