Question : SSRS 2008 error exporting to Excel

We are getting the error:

Excel Rendering Extension: Number of columns exceeds the maximum possible columns per sheet in this format; Columns Requested: 294, Max Columns: 256

when exporting a report to excel format from reporting services 2008.  We have Excel 2007 installed.  Any workarounds?  When we export to CSV we are successful and can open in Excel with no problems.

Answer : SSRS 2008 error exporting to Excel

You're hitting one of the Excel rendering limitations, 256 columns.  The list is here.  http://msdn.microsoft.com/en-us/library/ms156418%28SQL.90%29.aspx  

There are only two workarounds.  Either reduce the number of columns to 256 or less or export as CSV.  CSV files do not have that limitation.

Greg
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