Assuming this is related to music, it likely contains audio files (e.g., MP3, FLAC) of symphonies by the composer Anton Bruckner.

If you tell me , I can help you identify: What specific recordings or performances are likely inside.

You cannot extract the contents without all associated parts ( .part1 , .part2 , etc.) in the same folder [1].

(part1, part3, etc.) needed to open it. Just let me know!