A "paper" or formal academic document on this specific file does not exist, as it is a digital asset rather than a research topic. However, if you are looking for information regarding the contents of such a file, it generally includes:
: This version "02" likely refers to a specific beta or update version (v0.2) of a homebrew application or game asset pack. Little sister 02.7z
: The .7z extension indicates the file is compressed using the 7-Zip format, which requires a utility like 7-Zip or WinRAR to open. A "paper" or formal academic document on this