I made allready like this.
I want to explaine my ideea.
In my case, the dimensions lines are made manually in some cross sections.From the left limit till the right limit. If you export the text or mtext, CadTools is making a list with values one under other value. Maybe is posible to export in the same line all the text or dimensions values, in diferent cells to see them in excel like I see in the cross section.
Good luck.