Files with PTS extension can also be found as tileset data from Bioware's Infinity Game Engine (Baldur's Gate).
PTS file extension - Infinity Engine game tileset
What is pts file? How to open pts files?
File type specification:
The PTS file extension is also used in the Infinity game engine from Bioware. It was used in several successful titles such as Baldur's Gate or Icewind Dale.
A *.pts file from Infinity Game Engine contains tileset data.
List of recommended software applications associated to the .pts 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 pts file, edit pts file, convert pts file, view pts file, play pts file etc. (if exist software for corresponding action in File-Extensions.org's database).
- Others pts file
Unspecified and all other actions for computer programs working with pts file - Infinity Engine game tileset
Click on the software link for more information about Baldur's Gate. Baldur's Gate uses pts 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.).