Files with PAUX extension can be found as files generated by PlasTex LaTex document processing framework.
Software that open paux file
PAUX file extension - PlasTeX file
What is paux file? How to open paux files?
File type specification:
The PAUX file extension seems to be used for some sort of output file generated by PlasTeX LaTeX document processing framework.
List of recommended software applications associated to the .paux file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open paux file, edit paux file, convert paux file, view paux file, play paux file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with paux file - PlasTeX file
Click on the software link for more information about LaTeX. LaTeX uses paux 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.).