The file does not appear to be a publicly documented or standard file associated with a widely known software package or text repository. Based on general technical knowledge and search results, "7z" is a compressed archive format created by the 7-Zip archiver .
If you are looking for the content within this specific archive, you will need to extract it using a compatible tool: YesPlease.7z
If this file was downloaded from a specific forum or site, the "full text" would likely be a document or README file contained inside the archive itself. Frequently Asked Questions (FAQ) - 7-Zip The file does not appear to be a
Use apps like Unzip One to open and extract 7z files. YesPlease.7z