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On Android device, navigate to 'Apps' > 'Settings' > 'Security', enable 'Unknown Sources', then tap 'OK' to agree to enable this setting. This will allow the installation of third party apps and standalone APKs. 2. Download the APK file to your PC.

Start by going to //play.google in your computer's web browser and signing in with your Google account.

1
Once you download an APK file for a Play Store app with this method, you can easily transfer it to your Android.
2
You can only download APKs for free apps it's not possible to get a paid app's APK.