Huge files on tmp directory in Batch Server

Hi!

I've got a couple of really heavy files on directory

C:\ProgramData\ABB\Produce IT\tmp

inside my Primary Batch Server node (see screen capture below).

My HD is running low and I would like to know if it's safe to delete them, given that they're supposed to be temporary files.

Any idea of what they might be for?

The system is 800xA v6.0.2.
We've got two redundant Batch Server nodes and one additional Batch Witness node.
The DCS is completely virtualized.

Thanks so much in advance.

Francisco