Can you use the replace command to substitute Week for all instances of Period in a worksheet?

Yes, you can use the replace command to substitute "Week" for all instances of "Period" in a worksheet. Simply open the Find and Replace dialog, enter "Period" in the "Find what" field and "Week" in the "Replace with" field. Then, click on "Replace All" to make the substitution throughout the entire worksheet. This action will update all occurrences of the specified text as per your request.