Excel based table size in drawings

I have tables in my drawings of hundreds of part/configuration values.  I am using excel (2007 sp2) to create these tables and copy and paste this into a drawing.  My problem is when I edit this table by double clicking it, the overall size of the table changes(everytime it is a different size), this cannot happen due to other text associated with this table position and size.  Is there some way to stop the table from changing size ie lock the table, put dimesions on it etc.  or is there some way to associate text on a specific layer locked to a specific position to the table?

attached is an example of the tables and also associated text 2 pages.

Thanks,

Kurt

SolidworksConfigurations design Tables