http://blogs.office.com/b/microsoft-excel/archive/2012/12/13/introduction-to-powerpivot-in-excel-2013.aspxThis blog post was brought to you by Diego Oppenheimer a Program Manager on the Excel team. Some weeks ago I introduced an important, new part of the Excel 2013 Data Model and how you could create relationships between different data sources right inen-USTelligent Community 1.5.134.15456 (Build: 5.5.134.15456)http://blogs.office.com/b/microsoft-excel/archive/2012/12/13/introduction-to-powerpivot-in-excel-2013.aspx#35575Mon, 21 Jan 2013 10:44:06 GMT53587256-c606-4c9b-bad4-97c86b12ce62:35575ErikBo<p>Clicking on &quot;Insert, Power View Reports&quot; just resulted in the &quot;Opening Power View: Working on opening Power View sheet...&quot; going on forever.</p> <p>Behind the Excel window a &quot;Microsoft Excel&quot; dialogue opened: &quot;We couldn&#39;t load the Data Model. This may be because the Data Model in this workbook is damaged&quot;. Clicking OK to that guy gave:</p> <p>&quot;Power View Error: Exeption from HRESULT: 0x800A03EC&quot;.</p> <p>?!</p> <div style="clear:both;"></div><img src="http://blogs.office.com/aggbug.aspx?PostID=35575" width="1" height="1">