The available Android application files (specifically using bluetooth) are file types .apk. What file type is this? Am I supposed to be able to open them on an Android application development software?https://devzone.nordicsemi.com/f/nordic-q-a/4899/the-available-android-application-files-specifically-using-bluetooth-are-file-types-apk-what-file-type-is-this-am-i-supposed-to-be-able-to-open-them-on-an-android-application-development-softwareI am using Android Studio and am developing a system with the nRF51822. I would like to use the available sample code - nRF Master Control Panel APK for Adroid - available on nordicsemi.com, but I am not able to open it on the Adroid Studio software.en-USTelligent Community 13Wed, 07 Jan 2015 13:05:44 GMTRE: The available Android application files (specifically using bluetooth) are file types .apk. What file type is this? Am I supposed to be able to open them on an Android application development software?https://devzone.nordicsemi.com/thread/17306?ContentTypeID=1Wed, 07 Jan 2015 13:05:44 GMT137ad170-7792-4731-bb38-c0d22fbe4515:65ff8332-8ceb-4929-8145-fa8ce67d6590Petter Myhre<p>Unfortunately the source code for nRF Master Control Panel is not available for download.</p><div style="clear:both;"></div>RE: The available Android application files (specifically using bluetooth) are file types .apk. What file type is this? Am I supposed to be able to open them on an Android application development software?https://devzone.nordicsemi.com/thread/17305?ContentTypeID=1Mon, 22 Dec 2014 08:17:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1ee4ad69-62e9-4809-8d10-438902179a63Inspectron<p>Apk is your application. You have to install it before you can use the application. Search the folder of the apk and install it with a click on the apk.</p><div style="clear:both;"></div>