This is a free sample add-in (ready to install and use) that adds a number of useful features to Microsoft Excel. The add-in is based on the innovative Add-in Express technology and gives you an example of developing Excel add-ins, creating custom toolbars and controls and accessing Excel objects. The add-in contains a full source code in VB, C# and supports Excel 2003 and Excel 2007. It works in VSTO 2005 SE and VSTO 2008 (VB.NET, C#)....
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Support for Add-in Express Toys for VSTO and Excel is available from the
publisher/developer site This download (Add-in Express Toys for VSTO and Excel) is freeware. "Freeware is copyrighted computer software which is made available for use free of charge, for an unlimited time, as opposed to shareware where the user is required to pay (e.g. after some trial period or for additional functionality)." More info at
Wikipedia.
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