Files with wbm extension could be found in older games produced by Bioware, such as Baldur's Gate or Icewind series as one of the data files from the game engine. They can also be found in Baldur's Gate: Enhanced Edition, but the format used in that game is not related to the original format used Infinity Engine.
WBM file extension - Infinity Engine game file
What is wbm file? How to open wbm files?
File type specification:
The wbm file extension is also related to one of the default formats of the Infinity Engine, a video gaming engine developed by BioWare for various computer games like Baldur's Gate, Icewind Dale etc. The *.wbm file stores some kind of game data.
Note: Baldur's Gate: Enhanced Edition also features *.wbm files, but these are for for video sequences. These appear to be in completely different format, probably based on the WEBM format, which Ogg vorbis audio codec used. In old Bioware games, the videos were saved in the MVE format.
List of recommended software applications associated to the .wbm file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux etc.) and possible program actions
that can be done with the file: like open wbm file, edit wbm file, convert wbm file, view wbm file, play wbm file etc. (if exist software for corresponding action in File-Extensions.org's database).
- Others wbm file
Unspecified and all other actions for computer programs working with wbm file - Infinity Engine game file
Click on the software link for more information about Baldur's Gate. Baldur's Gate uses wbm file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).