how to connect cut list with external database

can anyone tell me if is possible to link the cut list  with an external access or excel  db? I use to draw playgrounds composed by several small parts of both wood, plastic and metal. I made a lot of profiles to use with weldments and would be nice to have a cut list working out the total of weight, volume and, the most important, price of material.

I tried to insert equations on the default cut list but I can't save it, when I "save as" a cut list with equations I get only a new tab with more columns but without equations... quite depressing

the second question is: how can a common human being edit or modify *.sldwldtbt files in order to insert some script?

thank you so much in advance

SolidworksWeldments