Excel Add-Ins are applications written by independent programmers that provide enhanced capabilities for the primary software. Here's how to install, manage, and choose the best Add-Ins available.

If you would like to enable Shared Workbook option, here's a way to add it to Excel Quick Access Toolbar. It is hidden under Excel Options.

How to Insert a Combo Box in Excel 2010. Combo boxes are a useful way of entering data into an Excel spreadsheet, combining the flexibility of a text field with the convenience of a list box.