Conversion of rar files to apk file format

It might be possible that occasionally .apk files downloaded from the Internet have their extensions renamed from APK to a different format, typically to bypass file restrictions. You can try to rename the suffix and see if that works. APK packages can also be further packaged, for example in RAR format in which case you simply have to decompress the files using WinRAR or simialr tool. Except for that, we do not know about any possible rar to apk conversion.

Open RAR file    Open APK file