Used by
Older Husqvarna Viking machines.
What it keeps
Stitch positions, jumps, trims, colour stops and thread slots.
What it can't hold
Exact colours, since only the 29 thread list is available.
What to watch for
Hoopbench opens HUS but does not write it. Newer Viking machines use VP3, so convert to that.
Best for
Reading old files so that you can bring them into a current format.