Question : How do you set up a SQL report to export multiple sheets to Excel?

I would like to have three sheets in a single workbood when I run the report. Do I use subreports in some way?

Answer : How do you set up a SQL report to export multiple sheets to Excel?

in your SSRS report, put a page break where you want each new worksheet to be, ie use the page break after feature of a group or table property.  It will split the report into multiple sheets at those page breaks.