Set the advanced server property, RSVP.EXCEL.EXCEL_2007_LARGE_WORKSHEET,
to a value of true to enable large worksheets. You must set this property
for the ReportService and the BatchReportService. 
Procedure
- Launch, IBM Cognos Administration.
 
- On the Status tab, click System.
 
- In the upper-left corner of the Scorecard pane,
click the arrow to view the Change view menu.  
Click Services,
and then click (All).
  
- Click the arrow for the Actions menu next to a Report or
Batch report and click Set properties. 
 
- Click the Settings tab.
 
- Click Edit next to Advanced
Settings.
 
- Select Override the settings acquired from the
parent entry.
 
- In the Parameter column, type a
parameter name. For example, type RSVP.EXCEL.EXCEL_2007_LARGE_WORKSHEET.
 
- In the Value column, type the setting
that you want to use. For example, type true.
 
- Click OK.
 
- On the Set properties page, click OK.