What are Intuit Interchange Format (IIF) files

Question 1: My payroll was saved to desktop then i import to quick but data did not open .iff file….2018 new computer. Intro: QuickBooks is a software tool that enables users to handle records hassle-freely. The payroll and accounting function of organizations are well dealt with by the software product. But the software comes with a few cons that emerge as technical issues while working on it. Question 2: “My question...