.AUX File Extension

File Type:
LaTeX Auxiliary File

Having trouble opening .aux extension? Don't panic! This page explains what aux files are as well as suggests programs you may use to open aux files. You can download these programs through this page.

What is an AUX file?

Aux file extension has LaTeX Auxiliary file type, which is associated with the "settings files" category.

Typically generated by TeX and LaTeX typesetting standards, the file provides various data regarding a document, including cross-references, footnotes, bibliography entries, etc. The .AUX file is commonly written if the .TEX file is typeset by LaTeX. 

To learn how you can open the given file, read the information below.

aux file icon
File Type:
LaTeX Auxiliary File
Settings Files

How to open AUX file?

Double click the aux file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .aux extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the aux extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the aux file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open AUX files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the aux file as well. Download Universal File Viewer for your OS.

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