Instead of an APK to EXE converter, install a Windows APK opener from above and then use it to open the Android app on your computer; it doesn't need to exist in the EXE file format for that to work.

Using this tool you can install Android apps on your Windows 10 Mobile device. Check out the following guide with step-by-step instructions for how to install Android apps on Windows 10 Mobile.

In either case, there is a nifty little Windows program called APK-Info that tells you all about an APK. When you launch APK-Info it asks you to select an APK file.