In QuickBooks Desktop, are you facing IIF File Import Quickbooks Desktop error? Don't worry, we're here to assist you in correcting those issues using the information provided below. Let's start by talking about what IIF files are and why they're important. IIF stands for Intuit Interchange Format in its entire form. Because it is an Intuit product, Intuit is prefixed, and the remaining two words specify the IIF files' characteristics. QuickBooks desktop uses IIF files to import and export transaction lists between different platforms. In a nutshell, it aids in the better management of the company's QuickBooks transaction records.