2. In the Documentation sheet, enter your name and the date. 3. In the Payment Form worksheet (which displays the total amount pledged, paid, and owed by donors), use an IFERROR function in cells F4 and F6 to display a blank text string if the formulas in those cells return an error. 4. Hide the Pledge Tables through Fully Paid Donations worksheets. 5. On the Review tab, in the Protect group, use the Protect Workbook button to protect the structure of the workbook. Do not specify a password for the protected workbook. 6. In the Payment Form worksheet, use data validation to add a validation list to cell C4 using the data in the range H4:H451 of the Payment Form