If you're in .NET or Powershell, and Excel is installed on the PC, you already have the Excel libraries. Not to mention the amazing ubiquity of functions to con

If you're in .NET or Powershell, and Excel is installed on the PC, you already have the Excel libraries. Not to mention the amazing ubiquity of functions to convert, import, manipulate, export, and otherwise work with spreadsheets. Or just work with the functions directly.