Help in excel on the subject to the GOAL_SEEK ,SOLVER

[bines]

I need examples in the spreadsheet how I apply these :

http://www.rnfc.org/rhapsody/math/OPTIM_EXCEL_SOLVER_LIBR.bas
http://www.rnfc.org/rhapsody/math/OPTIM_EXCEL_GOAL_SEEK_LIBR.bas

thanks,