Hello @NitaPowell,

Let me offer help and share how you can get rid of the error message so you import your IIF files successfully.

To start with, the error message you receive is related to how your file is created. Let's update its format base on the following requirements outlined in this article: Export, import, and edit IIF files.

In the same manner, this article will also provide additional resolution in case you're still unable to import your file after reformatting it: Improved IIF Import in QuickBooks 2019 and later.

On top of that, I've also included this reference for a compilation of articles you can use while working with us: Help Articles for QuickBooks Desktop.

If you have any other questions, please let me know in the comments below. I'll be here to lend a hand.