What is .AUX file extension?
.AUX file extension is a known file type. This section tells you everything you need to know about this extension.
File created by TeX and LaTeX, which are typesetting standards often used to generate academic papers and other technical documentation; contains information about a document such as footnotes, bibliography entries, and cross-references.
AUX files are written when a .TEX file is typeset (formatted to an output document) by LaTeX. Since the generation of LaTeX documentation can take multiple passes before the document is complete (because of file and citation cross-referencing), the AUX file is used to store information between runs of the LaTeX compilation process.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.