For Crm 3.0 follow the items named ‘a’ and ‘c’ below
For Crm 4.0 follow the items named ‘a’,’b’ and ‘c’ below
a- Navigate to HKEY_LOCAL_MACHINE\Software\Microsoft\MSCRM on the RegEdit tree
a- Create a new DWORD value named ‘MaxRecordsForExportToExcel’
a- Give the desired value
b- Open the table named ‘OrganizationBase’ in your organization db (myorg_MSCRM)
b- Change the value in the column named ‘MaxRecordsForExportToExcel’
c- restart SQL Server Agent
c- restart CRMAppPool on IIS
c- restart Dynamics Crm Web Site