Files with the APK extension comprises of the application programs that have been generated for the Google’s Android mobile based operating system. This Android platform is based on the Linux Operating system and was primarily designed by the Open Handset Alliance for use on the Smartphones, nevertheless, the Android platform is now available on the tablets in addition to the mobile phone usage.
Such files that consist of the APK file format is useful in storing the files that are required to run one Android application on the similar mobile device. These APK extensions are compressed file archive that contains the codes for the program, mainly the application resource files and the AndroidManifest.xml
In addition to the problem described above, i.e. the lack of the appropriate application to support the .APK file, there may be several reasons that cause problems with opening and operation of the data format:
A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .APK file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .APK file, so download the update and check again.
If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:
It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.