I use Tajima DGML by Pulse Ambassador software to change the design format.
I am glad you have gotten your answer so directing you to 'software', one of the tags, is no longer necessary. That list is growing also, but it's better than going through all the Q&A's. Flower for you.
Wilcom Trusizer is what you are looking for. It sizes and changes design extension. Google: Wilco trusizer and you will find the wilcom site. It is a free program.;)
Thanks jrob. Had downloaded the program but couldn't remember the name. *********4U