Question: Creating Many AdGroups at once

I have a site with 8 main areas. Each area has roughly 10-15 different sub-areas.
I would like to create an adgroup for each sub-area. This would total around 130 adgroups.

Is there a way to create many adgroups at once using a tool or spreadsheet upload?
Im hoping to have many thousands of keywords per group, hence the organization of these groups.


Any advice on this is much appreciated.