An igf file extension is associated with the Intercept Geometry data format.
IGF file extension - Intercept Geometry data
What is igf file? How to open igf files?
File type specification:
The igf file extension is related to a rare vector graphics Intercept Geometry file format.
The igf file stores attributes, child geometry information, and graphical information associated with a Pantheon geometry.
This igf 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.