The most reliable way to "repack" and install these files is using an installer that handles the extraction and placement automatically.
A standard is a single file containing everything needed for an app, while an XAPK is a compressed package that includes the core APK plus additional OBB data or split APK assets. online convert xapk to apk repack
If you don't want to install software on your PC, several web-based tools can handle the extraction for you. 1. Using Online Extractor Tools The most reliable way to "repack" and install