Go to Google Play Store and search the app for which you want to download APK file on PC. When the app description page opens, click ‘Install’ button and you will get ‘Download APK’ option. Click to initiate a download of the APK file.How do I modify APK?
Modifying an apk is easy. Copy the ".apk" file to your PC. Download winrar. Open the apk file with winrar. Navigate to the part where you want to modify. Extract it. Modify it.