Often it happens to have to create a PowerPivot model complex as logic and calculations , and as we know every time we make a change to the data model or to a measure that will be set to calculate the entire sheet and all associated pivot tables .
Quite annoying if the model takes 1 or 2 minutes each time . A good solution identified online is to install an add-on , I have tested it on excel 2010 2013 and by problems .