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 ...

Microsoft's spreadsheet program can do way more than you might realize. These are the hacks and tricks you need to know.

The TOCOL and TOROW functions are just two ways to rearrange data in Microsoft Excel. For example, you can flip the rows and columns using the TRANSPOSE function, transform large datasets using ...