Files with MXS extensions could be, especially in the past found as part of Triscape Map Explorer.
There are 3 other file types using
the MXS file extension!
.mxs - ArcView geocoding index for read-write shapefiles
.mxs - Maxwell Render scene definition file
.mxs - Corel Painter mixer pad file
MXS file extension - Triscape Map Explorer file
What is mxs file? How to open mxs files?
File type specification:
The MXS file extension is associated with Triscape Map Explorer. The .mxs file stores various binary data used for internal purposes of the application.
Triscape Map Explorer is obsolete product.
This mxs 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.