Files with xgz file extension might be found as some sort of vector drawing from MegaBlitz.
XGZ file extension - MegaBitz vector drawing
What is xgz file? How to open xgz files?
File type specification:
The xgz file extension is mainly related to some old vector drawing image from MegaBlitz software.
Most likely some old format without support from developer. No further information could be found.
This xgz 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.