Origin Ver. and Service Release (Select Help-->About Origin): Origin 8 SR0 Operating System: WIn XP ........... I think this is elementary but am not able to get the correct functions to get this task done. Can anyone help me in creating, say 10 worksheets, inside a particular workbook ? Say, I call the workbook (or worksheetpage) as wp. Can anyone tell me how to create 10 worksheets inside wp, with name as wks_1,wks_2,....,wks_10.