According to
https://quickbooks.intuit.com/learn-support/en-us/help-article/list-management/iif-overview-import-kit-sample-files-headers/L5CZIpJne_US_en_US
IIF is a tab-separated-values format. You can import that with the CSV
importer by setting the separator to Tab.
Regards,
John Ralls
> On
From Intuit:
"Intuit Interchange Format (.IIF) files are ASCII text, TSV
(Tab-Separated Value) files that QuickBooks Desktop uses to import or
export lists or transactions"
source:
https://quickbooks.intuit.com/learn-support/en-us/manage-lists/iif-overview-import-kit-sample-files-and-headers/
