How to Create an Excel Punch-in Time Card. The opening sequence of "The Flintstones" showed Fred Flintstone happily punching his time card at the end of a long Bedrock workday.

In Excel, custom input or error messages explain the rules for each field to prevent data-entry errors. Here's how to set them up in a spreadsheet.

Are you still putting your data in plain, old spreadsheets? Excel 2013 makes it easy to link tables, create reports and more.

Figure B How to use the UNIQUE () function in Excel If you’re using Microsoft 365 or one of the 2019 standalone versions of Excel, you can quickly create a dynamic list using the UNIQUE () function.

In Excel, you can create relationships between two tables based on the matching data within the table. Learn how to create relationships between tables in Excel.