The PTK files are considered as data files used by Intuit Quicken. It’s a personal finance management application that assists .ptk file extension for proper functioning. It has different features such as importing data right from participating banks, reports on all financial data, and download daily stock and fund prices. The PTK file format is the earlier type of file that Quicken uses to save financial information which is now substituted with the GIF format. The main purpose of PTK files was to import data from online resources, such as banks and financial institutions, into the Quickens database.