export each query to a different sheet
docmd.transferspreadsheet acexport, acSpreadsheetTypeExcel9,"QueryName1","C:\myExcel.xls",true,"Sheet1"
docmd.transferspreadsheet acexport, acSpreadsheetTypeExcel9,"QueryName2","C:\myExcel.xls",true,"Sheet2"
docmd.transferspreadsheet acexport, acSpreadsheetTypeExcel9,"QueryName3","C:\myExcel.xls",true,"Sheet3"