Extracting OBB Game Data from XAPK Bundles

Why XAPK files include OBB data

Large Android games often keep media, levels, maps or other heavy assets outside the APK. Those expansion files are usually stored as OBB files and bundled with the APK inside an XAPK package.

If the APK installs but the game downloads data again or fails to launch, missing or misplaced OBB files are a common cause.

What OBB files look like

File	Meaning	Install location
main.123.package.name.obb	Main expansion file.	Android/obb/package.name/
patch.123.package.name.obb	Patch or additional expansion data.	Android/obb/package.name/
Android/obb/package.name/	Standard folder path inside some archives.	Keep the same package folder.

Step 1: Open the XAPK locally

Use the OBB Extractor to scan the XAPK or ZIP archive for OBB files. The tool runs locally in your browser and lists the detected file names and sizes.

Step 2: Confirm the package name

The OBB folder name should match the Android package id, such as com.example.game. If the archive includes APK metadata, compare it with the folder path before copying files.

Step 3: Place OBB files correctly

On the Android device, OBB files normally belong in Android/obb/package.name/. Keep the exact package folder and avoid renaming the OBB file unless the original source explicitly requires it.

What to do with APK files

If the same XAPK also includes APK or split APK files, install those first. Split APK packages must be installed together before the OBB files will be useful.

OBB troubleshooting checklist

• Check that the OBB file is complete and not zero bytes.
• Verify the package folder matches the app package name.
• Keep main and patch files together when both are present.
• Inspect the related APK in APK Info if the package name is unclear.

Privacy note

OBB files can be very large. Browser-based extraction avoids uploading private game data to a server, but very large archives may still perform better on desktop devices.