Fully defined sketches creating extra points?

Hi,

I'm having an issue exporting sketch points in that the points that I'm interested in come along with extra data. When I create 3 points in space and I export the sketch I get 3 points in my txt file, but when I create 3 points defned by the object the txt file has between 3 and 9 points depending on the placement.

How can I export so that I only get the points I drew without the reference points also included?

Thanks

SolidworksImport export