Streamingassets.rar -

: Any files placed in a folder named StreamingAssets (case-sensitive) in your project are copied exactly as they are to the target device when you build your game.

: This is ideal for files that need to stay in their original format, such as video files, large configuration files (JSON, XML, or SQLite), or custom asset bundles. StreamingAssets.rar

: For more advanced content management, developers often use Addressables or Asset Bundles instead of the basic StreamingAssets folder. rar archive you found? Include additional files in a build - Unity - Manual : Any files placed in a folder named

How you read files from this folder depends on the platform: rar archive you found

: On many mobile platforms, this folder is read-only at runtime. If you need to write or save data (like game saves), use Application.persistentDataPath instead. Usage Tips

: For better compatibility with certain Android builds, it is recommended to keep filenames lowercase and avoid non-ASCII characters.