It is not possible to convert a tar file to an apk file. Tar is a file archive format, while apk is a file format for Android application packages. The two formats are not compatible and cannot be converted into each other.
A tar file is a compressed archive file that can contain multiple files. It is often used to store files for backup or distribution. An apk file is an Android application package that contains the code, resources, and other files needed to install and run an Android app.
If you have a tar file that contains an Android app, you can extract the app from the tar file and then install it on your Android device. To do this, you can use a file archiver program like 7-Zip or WinRAR.
Once the app is extracted, you can install it on your Android device by following these steps:
Open the file manager on your Android device.
Locate the extracted app file.
Tap on the app file to install it.
You may need to grant permission to install apps from unknown sources before you can install the app. To do this, go to Settings > Security > Unknown Sources and toggle the switch to the on position.
Once the app is installed, you can launch it from the app drawer.