Open the emulator's system media interface and select the option to import external data files directly from your computer desktop.

To check the expansion file on Angry Birds Epic, follow these steps:

The "Checking Expansion File" screen is a common roadblock for players attempting to run Angry Birds Epic on modern Android devices. This message appears when the game is looking for its OBB (Opaque Binary Blob)

What specific or PC emulator profile you are running.