Microsoft Excel's Data Validation tool lets you add a drop-down list to a cell based on existing data in a column. However, how this works depends on whether the source data is part of a formatted ...

What’s the difference between a table and a range of columns and rows on an Excel spreadsheet? How do I create and populate tables? And, once a table is created, how do we custom filter, format, and ...

You can easily create a drop-down list in Excel to limit the values that can be entered in a column. This data validation helps prevent mistakes, such as misspellings. Drop-down lists are also useful ...

Excel used to be the poor schmuck’s database, with spreadsheets that just sort of sat there. You could create something more sophisticated with LOOKUP functions, but they were a huge hassle to set up.