Add-in Express Toys: Excel .NET Extension Tools

Key Features

• This is a free sample COM add-in (ready to install and use) that adds a number of useful features to Microsoft Excel.
• The add-in is based on the advanced Add-in Express technology and is designed to show you how to create add-ins, how to manage add-in\'s toolbars and controls, and how to access Excel objects.
• The add-in contains a full source code in VB, C# and supports Excel 2000, 2002 (XP), 2003 and Excel 2007.

Technical Specifications

• **Publisher:** Add-in-express.com
• **License:** Freeware
• **Operating System:** Windows 7, Windows 8, Windows 10, Windows 11
• **Last Updated:** October 15, 2025
• **Category:** Programming / Misc Programming Tools