Understand that Katalon Desktop Testing Capabilities supported OS (Windows, macOS and Linux) while reading from Desktop Application Testing | Best Automation Test Tools | Katalon. However when I tried to use windows spy on the Mac Application that only accept exe files and mobile only supports IPA files on IOS. Please let me know how can we execute desktop testing with Katalon studio on MacOS?
Supported OS are the OSs on which desktop testing capability is available on. However, the target application under test currently must be a Windows application. On the same page you can also see this: