Trying to extract a chip firmware from my tablet, but this error happened.

[Arthurfogo7]

Extracting 804072702 bytes of header image at offset 0 Extracting troc file system at offset 804072702 815883264 815886336 3072 Extracting 3072 byte footer from offset 815883264 Unsupported file system 'troc'! Quitting...