|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||today||64.61||$52.97||You save $11.64|
Rob Collie is an entrepreneur, author, and consultant. He was one of the founding engineers behind PowerPivot at Microsoft and operates the world's leading PowerPivot website, PowerPivotPro.com. He lives in Cleveland Heights, Ohio. Avichal Singh is a business analyst at Microsoft and a frequent guest blogger on PowerPivotPro.com. He lives in Seattle.