Do you have of this pack downloaded to your computer yet?

Ensure you have downloaded all corresponding pieces of the archive. For example: SPECIAL1205_PACK1.part1.rar SPECIAL1205_PACK1.part2.rar SPECIAL1205_PACK1.part3.rar (if applicable)

because it is just one fragment of a split archive.

A file ending in .part2.rar is a or multi-volume archive .