I have signed and packaged the Xamarin application
and so have created the apk file using Visual Studio.
How can I zipalign this file in Windows?
I spent a good few minutes searching for the Android command line build tools. They were nowhere to be found inside either of the Program Files directories. Apparently, on my system the tools were in the following location:
C:\Users\{username}\AppData\Local\Android\Sdk
I found the location inside Android Studio by going to File > Project Structure > SDK Location.
Edit: Obviously, "my system" is Windows - specifically Windows 10.