Because XAPK files are not standard Android installers, they cannot be opened by the default package manager. You can use these methods to install version 3.7.5:
Use tools like the XAPK Installer on Google Play or the official Uptodown App Store to automate the process. Manual Method (Renaming): Rename the file extension from .xapk to .zip . Extract the contents to a folder. Download APK File [XAPK] v3.7.5
Copy the .obb file (located in the Android/obb folder) to your phone's internal storage path: /Android/obb/ . Install the base .apk file normally. Because XAPK files are not standard Android installers,
You generally need at least twice the file size (approx. 200MB+) available to extract and install an XAPK. Extract the contents to a folder
If you have an older version of the app already, you may need to uninstall it first before the new XAPK will install. Download Haylou Fun V3.7.5 for Android | Uptodown.com