Because the filename appears to be a randomized or encoded string, it is likely one of the following:
: It could be a specific download from a platform like GitHub, Zenodo, or a university repository where files are sometimes assigned alphanumeric codes. y9G2Xd09y3.7z
To access the contents of this file and determine its specific origin or "proper paper," you will need a compatible archiver: Because the filename appears to be a randomized
Providing the website or context where you encountered it (e.g., a specific GitHub repo or a forum post) will help in identifying the exact paper it belongs to. y9G2Xd09y3.7z
: A free alternative that supports the LZMA and LZMA2 compression used in 7z files.