Quicken had interpreted the date as Month/Day/Year, but his old software exported it as Day/Month/Year. That was why 05/01/24 (May 1st) had become January 5th, and why dates like 13/01/24 were erroring out entirely—there is no 13th month.
He clicked OK .
Have a QIF file that won't import? Convert it to CSV, then use a free tool like QIF2CSV or Plain Text Accounting to rebuild the QIF with proper syntax. quicken import qif
Assuming you are using Quicken for Windows or Mac (2017–Present), follow these steps: Quicken had interpreted the date as Month/Day/Year, but