I have a user who has created a spreadsheet used for data entry. He has placed some "VLookup" formulas in several of the input cells to create drop down picklists. However, when a user enters and saves a new value that is not in the picklist, the "VLookup" formula is lost and overwritten by the new cell value. Is there any way to protect the formula value from being overwritten? I have written some code in VBA to preserve the formulas when the user clicks a "New" command button and clears the form. However, I don't know how to protect the formulas in this situation. Thanks in advance.