How to re-zip sqlite file as a .jet file [on hold]

I have a .sqlite file and the developer zip it as a .jet file. Now I can open it with 7zip, I can edit the db but at the end I couldn’t re-zip again as a .jet file. I tried every solution that I saw on the internet, but none of them answer to me.

If someone wants to take a look, file download link.

Any help would be great.