The file is too long

[arbalest876]

When I try to extract xb2‘s ard and arh files,I used command:
XbTool -g xb2 -t ExtractArchive -a bf2.ard bf2.arh -o bf
It says'The file is too long.This operation is currently limited to supporting fiels less than 2 gigabytes in size.'

[Thealexbarney]

Swap the order of the ard and arh files