What is an APK file and how to install APKs on Android?

If you own an Android device you will likely have heard of an APK file at some point, and possibly wondered what it even is. Understanding this is essential if you want to start downloading leaked apps or customizing your Android experience further than would be possible using the Play Store alone. The post What is an APK file and how to install APKs on Android? first appeared on PR Business News Wire.
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