AIFF File Format Usage Explained

The AIFF (Audio Interchange File Format) is a file format primarily used for storing digital audio data. Developed by Apple, it is known for storing high-quality, uncompressed audio.

Analysis of Options:

• Option 1: Text, Audio and Video compressed format - Incorrect. AIFF is specifically for audio and is typically uncompressed, not designed for text or compressed video.
• Option 2: Audio and Video files - Incorrect. While AIFF handles audio, it does not support video files.
• Option 3: Compressed Video files - Incorrect. AIFF is not related to video compression.
• Option 4: Audio files - Correct. AIFF's core purpose is to store uncompressed digital audio data, making it ideal for high-fidelity sound applications. The common extensions associated with this format are $.aif$, $.aiff$, and $.aifc$.

Therefore, the AIFF file format is mainly used for Audio files.