Use apps (e.g., XAPK Installer from Play Store) – they auto-extract and install both APK + OBB.
Click "Convert" or "Extract." The server will unzip the XAPK, ignore the OBB folder, and pull out the base.apk file. online convert xapk to apk
There are several online tools available that can convert XAPK to APK for free. These tools are easy to use and don't require any technical expertise. Simply upload your XAPK file to the conversion website, select the conversion option, and download the converted APK file. Use apps (e