Inside the zip, look for a readme.txt or User_Manual.pdf for installation steps (especially if it's firmware, which needs an SD card to update the camera).
Many Inskam smart cameras work with apps like "CamHi" , "Yoosee" , or "Inskam Smart" on Google Play or Apple App Store. Those are safer than random zip files. wwwinskamcom download camerazip smart camera full
Search for "inskam" on the Google Play Store or the Apple App Store to download the mobile interaction client. inskam - App Store Inside the zip, look for a readme