Conversion of apk files to mkv file format

Android installation packages (.apk) generally do not contain documents, pictures, or any multimedia file (such as Matroska .mkv files), so it is unlikely that it is possible to convert apk to mkv. It might be possible that you were looking for an installation package for an Android app converter. In such case, you can either try to find one using a proper conversion query like MKV to AVI, or browser Google Play to find the app you were looking for.

Open APK file    Open MKV file