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Android opaque binary blob archive
File type: Encoded and encrypted file, Mobile phones related file
Files with obb extension can usually be found as special, encrypted archives for Android APKs that contain additional content, graphics, map packs, multimedia files, and more. Common for all large and complex Android apps.
File type category:
Encoded and encrypted file
Mobile phones related file
Date updated: December 25, 2024
File extension obb is nowadays mainly related to Google Android mobile operating system for smartphones and tablets.
OBB is short for Opaque Binary Blob files (obb file), special archives created with the JOBB tool from Android SDK (now Android Studio).
This feature was introduced in Android 2.3 Gingerbread, allowing developers to create apps larger than 50 MB. This is because Google Play (previously Android Market) does not allow apk files bigger than this value.
In essence, an obb file is an encrypted archive containing data above the 50 MB limit, which in turn means more multimedia content and HD graphics for apps. It can also be shared across multiple apps, for example, navigation maps.
For games, developers can offer more complex, graphics-rich apps through the store.
These *.obb files are used together with corresponding .apk installation packages to add additional content.
It seems that you cannot just convert obb files to anything. However, some SKD tools can be used to explore the files.
Software apps that create obb files:
Apple macOS / Mac OS X
Linux/Unix
Multiplatform
Software apps that recover obb files:
Microsoft Windows
Software applications that handle other tasks involving obb files:
Apple macOS / Mac OS X
Linux/Unix
Multiplatform
Google Android
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