Syntax definitions taken from bguest/ANSYS-Textmate-Bundle with permission.
Supported file extensions:
*.ans
*.ans.txt
*.ansys
*.ansys.txt
*.apdl
*.mac
You can manually set with View > Syntax > APDL (ANSYS)
If there are other filename conventions in use, submit an enhancement Issue to https://github.com/RazerM/APDL-Syntax