Biology Extension for Excel
Here is a screen shot showing one of the options under the Bioinformatics tab on the Excel ribbon menu.

Excel Add-in: IntroductionMicrosoft Research Senior Program Manager Michael Zyskowski introduces this new add-in for Microsoft Excel that gives scientists and researchers the ability to study genomic data, perform assemblies, and access BLAST services all inside Excel.
Excel Add-in: Genomic IntervalsMicrosoft Research Senior Program Manager Michael Zyskowski demonstrates how this add-in for Microsoft Excel gives scientists and researchers the ability to study genomic intervals and create Venn diagrams in support of publicating results.