If you are looking for a way to "crack open" the zip and see what's inside without fully installing it:
If your zip is from the SkyRoof community , it’s a tool for hobbyists to automate their backyard observatories, ensuring their telescope "talks" to their roof and sky charts seamlessly. 4. How to Use the Data SkyCat_2023-01.zip
Interestingly, there is a newer "SkyCAT" (a CAT engine) used in conjunction with for amateur radio and telescope dome control. If you are looking for a way to