An aux file extension is related to the TeX/LaTeX auxiliary references file format.

There are 2 other file types using
the AUX file extension!

empty icon.aux - MegaHAL data

empty icon.aux - ERDAS geospatial auxiliary data

Detailed description

Software that open aux file

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AUX file extension - TeX/LaTeX auxiliary references

What is aux file? How to open aux files?

The aux file extension is mainly related to the TeX/Latex typesetting language. The aux file contains auxiliary references.

Instead of visually formatting your text, you enter your manuscript text intertwined with TeX commands in a plain text file. You then run TeX to produce formatted output, such as a PDF file.

Thus, in contrast to standard word processors, your document is a separate file that does not pretend to be a representation of the final typeset output, and so can be easily edited and manipulated.

Updated: May 3, 2019

The default software associated to open aux file:

LaTeX icon

LaTeX  Microsoft Windows software

Company or developer:
LaTeX Project Development Team

A document preparation system for high-quality typesetting, LaTeX is used to create medium-to-large technical or scientific documents but it can be used for almost any form of publishing.

Help how to open:

Probably not meant to be accessed by the user.

How to convert:

Probably cannot be converted to anything else.

List of recommended software applications associated to the .aux 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 aux file, edit aux file, convert aux file, view aux file, play aux file etc. (if exist software for corresponding action in File-Extensions.org's database).

Unspecified and all other actions for computer programs working with aux file - TeX/LaTeX auxiliary references

Click on the software link for more information about LaTeX. LaTeX uses aux 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.).

Microsoft Windows:

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