Parametric assemblies

Hello,

We are trying to work with Design Tables to create parametricassemblies, but it makes to slow to work, and also, we have foundthat at the end, it doesn't work, because excel can not open morethan 60 times (more or less)

We have heard that it can be programmed an aplication where we cancollect all the inputs for the top assembly and the sub-assembliesand parts below as dimensions, components states, configurations,etc. With this aplication, all this data
is aplied to the components, and it is easy to change deparametrics of an assembly. All the parametrics in one excellsheet, so just playing the macro, all the pieces are rebuilding.

Does anyone can help us how to start programming this, or maybe isit possible to find something similar already programmed?

Thank you so much.SolidworksAssemblies