Based on common naming conventions in file-sharing communities, "auns" often refers to:
The file is the second part of a split 7-Zip compressed archive. Because it is a "split" file, it cannot be opened or reviewed on its own; it contains only a middle segment of the total data. auns2002.7z.002
: Split archives from unknown sources are a common way to distribute large files, but they can also hide malware since individual parts are harder for some antivirus programs to scan. Always scan the fully extracted folder before running any executables. auns2002.7z.002