APK: Android Application Package
Record Extension: .apk
An APK record is the document design used to introduce the applications on the Android working framework. An android program is first ordered, and afterward, the entirety of its parts are bundled into one single document to make it an APK record. APK documents can be saved in compacted compress design, with any decompression or unfasten instrument it tends to be opened. You can either change the expansion to .compress or open the record straightforwardly utilizing unfasten apparatuses. They are a kind of file document. At the point when you are downloading and introducing an android application then really you are introducing an APK document. You can introduce an APK record straightforwardly from a work area, or from inside a document supervisor application without downloading. Naturally, the capacity to introduce from the work area or record administrator application is crippled for security reasons. TO empower it, you need to change the setting of ‘Obscure sources’ from settings.