Filename extension .iif | ||
Internet media type application/qbooks
application/qbookspro
text/iif | ||
The IIF file format, Intuit Interchange Format is a proprietary text file used by Intuit's Quickbooks software for importing and exporting lists and transactions.
As of 2004, QuickBooks can also import data using the XML-based qbXML file exchange format. The MIME‑types associated with .iif files are application/qbooks, application/qbookspro, and text/iif.
References
Intuit Interchange Format Wikipedia(Text) CC BY-SA