Files with geom file extension can be usually found as one of the default file type from AVS a virtualization environment. A geom file stores low level geometric primitives, points, lines, facets, etc.
GEOM file extension - AVS Application Visualization System data
What is geom file? How to open geom files?
File type specification:
The geom file extension is used by the AVS commercial high-end visualization environment.
The geom file contains low level geometric primitives, points, lines, facets, etc. These files consist of a number of lines of printable ASCII characters, the first string in each line is the primitive ID.
This geom 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.