This is a split archive file . The .7z indicates it was created with 7-Zip, and the .001 means it is the first part of a multi-part set. You will need all subsequent parts (e.g., .002 , .003 ) in the same folder to extract the contents.
Depending on where you are using this text (a label, a readme, or a download link), here are a few options: SS-JulSS-002_s.7z.001
If you are missing the other parts (e.g., SS-JulSS-002_s.7z.002 ), you will receive an "Unexpected end of data" or "Can not open file as archive" error. Do you have the of this file set, or This is a split archive file