If you’re at all familiar with the Excel APIs, you’ll know that they’re often quite frustrating to work with. The fact that the Office 2007 .NET API is simply a wrapper around the COM interface doesn’t make it very appealing either.
I e-mailed my dad, who develops software, and he sent me a link to this handy .NET library by GemBox Software. It simplifies the Excel API, and allows you to get things done much more logically than the Excel API does. Here is a link to their product page: