http://blogs.msdn.com/excel/archive/2006/12/03/whitepaper-external-data-connections-for-excel-services.aspxFrom the Excel Services team: "We all know there are plenty of stumbling blocks that customers hit along the way in getting external data access configured for the first time. Some of you may have seen me shopping around a whitepaper that provides someen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/excel/archive/2006/12/03/whitepaper-external-data-connections-for-excel-services.aspx#1240175Fri, 08 Dec 2006 18:08:23 GMT91d46819-8472-40ad-a661-2c78acb4018c:1240175antonio<p>good</p>http://blogs.msdn.com/excel/archive/2006/12/03/whitepaper-external-data-connections-for-excel-services.aspx#1248898Sun, 10 Dec 2006 03:25:53 GMT91d46819-8472-40ad-a661-2c78acb4018c:1248898Dave<p>Will Excel support the notion of units? This would prevent a huge number of bugs in spreadsheets. It would also allow for formula verification, rescaling via cell format (was calculated in grams, formated to display in ounces), even fix calendar problems by relating the serial numbers to calendar systems. </p>