The SIF file extension is related to the ISIF vector data file format.
There are 3 other file types using
the SIF file extension!
.sif - Microsoft Windows NT setup installation file
.sif - Autodesk spatial index file
.sif - Super-IRG font
What is sif file? How to open sif files?
The SIF file extension is associated with the ISIF vector data file format.
ISIF format seems to be obsolete format that is not used in current vector graphics editing tools.
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