Opening an AUX File

The AUX file type is primarily associated with ChiWriter.

AUX	File extension: AUX
	File type:	auxilliary reference file

What is an AUX file?

AUX files mostly belong to ChiWriter by Horstmann Software Design Corporation. Various geospatial software such as ESRI, ArcGIS uses AUX file to store information. AUX stores information that comes with the raster dta in related file such as geographic JPG or TIF file. AUX files sometimes provide geographic images which user can generate using GIS program.

How to open AUX files

You need a suitable software like ChiWriter to open an AUX file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your AUX file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a AUX file directly in the browser:. Just drag the file onto this browser window and drop it.

Online AUX Text Viewer

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Programs that open and convert AUX files:

ChiWriter by Horstmann Software Design Corporation
See the previous paragraphs to learn more about the main application. AUX files are often referred to as ChiWriter databases because this type of file is primarily created or used by this software.
Geospatial Imaging (ERDAS IMAGINE and LPS data file) by OmniSci, Inc.
Geospatial intelligence is also known as GEOINT, an intelligence discipline that analyzes geospatial data to better understand and visually depict human activity based on a specific geographic location. Data sources for geospatial intelligence imagery include mapping data from satellites, aircraft, GPS and census information. This file format is classified as Raster Image. Related links: Geospatial Imagery Encyclopedia Page, Geospatialworld Page
LaTeX
LaTeX is an application system which is mainly used for document preparation. When user write using LaTex application it uses plain text format similar like Microsoft Word, Libre Office Writer and Apple Pages. This file format is classified as Database. Related links: LaTeX Wikipedia Page, Tug Page
MegaHAL (graphics format) by Ai Research
MegaHAL is a conversation simulator: a computer program which responds in natural language to what user type, which was developed by Jason Hutchens. This file format is classified as Raster Image. Related links: MegaHAL Wikipedia Page, Sourceforge Page

AUX file format:

The file format determines how the data is stored in the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). If the file extension or signature does not match the file format, errors will occur when opening or editing the file. When there is a problem with a file, the first step to solving it is to determine the file format. In the following you will find our evaluation of the AUX files:

The AUX extension is quite commonly used. The file itself covers different formats for different programs. The following file formats are most commonly found in AUX files:

35% of all AUX files start with the bytes \relax , which are crucial for this file format. These files contain text and words, not binary data. The file size is in the range of 260 bytes to 10 KB. The file type is relatively new. Several words can almost always be found in the files, e.g. \relax, \providecommand\hyper@newdestlabel[2]{}, writefile, contentsline and \providecommand\HyperFirstAtBeginDocument{\AtBeginDocument}. The file name output.aux is characteristic of these files. These files can be linked to chapter, thesis, template, manuscript, appendix, examen and resume.
30% of all AUX files start with the bytes EHFA_HEADER_TAG crucial for this file format. These files contain text and words as well as binary data. The files are 5 KB to 33 KB in size, with a median of 6 KB. The following keywords are characteristic: EHFA_HEADER_TAG and root.

All other AUX files (35%) have no consistent format, the following 7 formats exist: RIFF, HTML and BKHD. Often described as externalsources, events, media, music, system, spif or trex. If you want to find out which format your AUX file belongs to, just click on the button "Choose your .aux file to analyze".

Technical Data for AUX File Extension

File classification:

Database

Related files:

xml, spiff, ovl, avux, tex, rrd, tfw, zip, auxiliary, xstage, spif, hfa, lof, bbl, ovr, sid, uax, log, adf, rar, eft, pft, sft

Mime type:

text/x-stex

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: WinEdt.aux
EXEFile: %ProgramFiles%\WinEdt Team\WinEdt\WinEdt.exe %1

an aux auxilliary reference file is a special file format by Horstmann Software Design Corporation and should only be edited and saved with the appropriate software.

How to solve problems with AUX files

Associate the AUX file extension with the correct application.
Update your software that should actually open auxilliary reference files. Because only the current version supports the latest AUX file format. Search, therefore, e.g. on the Horstmann Software Design Corporation manufacturer website after an available ChiWriter update.
To make sure that your AUX file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .AUX file online - secure, fast, and no downloads needed.