I have to create a very large organizational chart with well over 60 divisions/sub-divisions. When I attempt to format it, I can clearly see that there is more than enough room to resize the boxes and move them around to allow for some breathing room and readability. However, I am having trouble adjusting the SmartArt to fit in a page. Is there any way to adjust the size of the boxes to make better use of the available space? Is designing such a chart on Word/Excel even possible or should I consider a different program? I’ve attached the screenshot and file for reference.

Thanks for the help!