Microsoft Excel worksheets are convenient places to store limited amounts of data. Excel is a spreadsheet application, but an Excel file can also serve as a database for your website if you can ...

Use Excel data validation to prevent duplicate values in a column Your email has been sent Prevent duplicates before they happen by combining a simple function with data validation. Excel has built-in ...

Microsoft Excel displays the error "Cannot extend list or database" when your data set is not as continuous, and shows the error message to avoid overwriting existing ...