I downloaded it (Workspace_Backup_final.jpg) with wget and ran file
over it. This said that it was a zip file. I unzipped it and ended up
with another zip file that was named as an image file,
Workspace_Backup.jpg (note the loss of the '_final' in the filename).
I unzipped that and ended up with a whole bunch of Java files for
loading CSV files and reading Excel data.

It looked a lot like someone getting started with Java (minor changes
to example code) and a bunch of dummy data to test things with
presumably.