I am able to extract my application apk file from PC. I am using the steps are
Add .zip after myapp.apk.zip
The APK file has been extracted successfully. But I am not able to see the XML file content.
The XML file has been incorrect format. This is my application. Learning Purpose Only.
Decompiling Android APPs using APKTool
Open command prompt and run below command.
apktool d apkfile ./FolderName