I have a query regarding excel solver. What it means actually we are implementing Microsoft Navision to the tower manufacturing company,in that optimization(Nesting) is one part to reduce the scrap. When we are running the process of optimization it is taking more than two hours to generate a result with 5 combinations. In this regard excel solver is use for us or not. I need clarification regarding this issue. Suppose if this is not solve give other solution to resolve.