Soso.7z

If you can provide more context, such as or what type of data you expect it to contain , I can provide a more specific guide. UCC Filing How-To Guides - the Texas Secretary of State

However, the results indicate that "7z" files are frequently used as archive formats in technical contexts. Specifically: Soso.7z

A .7z file is a compressed archive format managed by the 7-Zip software. If you can provide more context, such as

Install the free, open-source file archiver. If you can provide more context