New Post: XLAlignmentHorizontalValues

Thanks for ClosedXML, It is making my volunteer work much easier. I have an ASP.NET C# web application and I have successfully created an Excel file with ClosedXML. I cannot however format a a cell with XLAlignmentHorizontalValues as it is not defined Do I simply download Microsoft.Office.Tools.Excel.dll and add it into my application? Will it work when hosted on a web server without Office?

Thanks