An iuf file extension is related to the AusSoft LandMark and used for its incremental updates.
IUF file extension - AusSoft LandMark incremental update
What is iuf file? How to open iuf files?
File type specification:
The iuf file extension is associated with the LandMark, an automated map and data exchange software for Microsoft Windows developed by AusSoft.
The iuf file stores incremental update for LandMark.
This iuf file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.