List of common MIME types

MimeTypes.cs

public static class MimeTypes
{
	public static string Aiff
	{
		get { return "audio/aiff"; }
	}

	public static string Avi
	{
		get { return "video/x-msvideo"; }
	}

	public static string Css
	{
		get { return "text/css"; }
	}

	public static string Csv
	{
		get { return "text/csv"; }
	}

	public static string Doc
	{
		get { return "application/msword"; }
	}

	public static string Docx
	{
		get { return "application/vnd.openxmlformats-officedocument.wordprocessingml.document"; }
	}

	public static string Dot
	{
		get { return "application/msword"; }
	}

	public static string Gif
	{
		get { return "image/gif"; }
	}

	public static string Gz
	{
		get { return "application/x-gzip"; }
	}

	public static string Htm
	{
		get { return System.Net.Mime.MediaTypeNames.Text.Html; }
	}

	public static string Html
	{
		get { return System.Net.Mime.MediaTypeNames.Text.Html; }
	}

	public static string Jpeg
	{
		get { return System.Net.Mime.MediaTypeNames.Image.Jpeg; }
	}

	public static string Jpg
	{
		get { return System.Net.Mime.MediaTypeNames.Image.Jpeg; }
	}

	public static string Js
	{
		get { return "application/x-javascript"; }
	}

	public static string Mid
	{
		get { return "audio/mid"; }
	}

	public static string Mov
	{
		get { return "video/quicktime"; }
	}

	public static string Mp3
	{
		get { return "audio/mpeg"; }
	}

	public static string Mpeg
	{
		get { return "video/mpeg"; }
	}

	public static string Mpg
	{
		get { return "video/mpeg"; }
	}

	public static string Octet
	{
		get { return System.Net.Mime.MediaTypeNames.Application.Octet; }
	}

	public static string Pdf
	{
		get { return System.Net.Mime.MediaTypeNames.Application.Pdf; }
	}

	public static string Pps
	{
		get { return "application/vnd.ms-powerpoint"; }
	}

	public static string Ppt
	{
		get { return "application/vnd.ms-powerpoint"; }
	}

	public static string Pptx
	{
		get { return "application/vnd.openxmlformats-officedocument.presentationml.presentation"; }
	}

	public static string Rtf
	{
		get { return System.Net.Mime.MediaTypeNames.Application.Rtf; }
	}

	public static string Tiff
	{
		get { return System.Net.Mime.MediaTypeNames.Image.Tiff; }
	}

	public static string Txt
	{
		get { return System.Net.Mime.MediaTypeNames.Text.Plain; }
	}

	public static string Xls
	{
		get { return "application/vnd.ms-excel"; }
	}

	public static string Xlsx
	{
		get { return "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"; }
	}

	public static string Xlt
	{
		get { return "application/vnd.ms-excel"; }
	}

	public static string Xml
	{
		get { return System.Net.Mime.MediaTypeNames.Text.Xml; }
	}

	public static string Zip
	{
		get { return System.Net.Mime.MediaTypeNames.Application.Zip; }
	}

	/// <summary>
	/// MIME type for unknown files
	/// </summary>
	public static string Unknown
	{
		get { return "application/unknown"; }
	}

	/// <summary>
	/// Try to determine MIME type based on the extension. If a type cannot be inferred, application/unknown will be returned
	/// </summary>
	/// <param name="fileName"></param>
	/// <returns></returns>
	public static string Auto(string fileName)
	{
		string mimeType = "application/unknown";
		string extension = System.IO.Path.GetExtension(fileName).ToLower();
		
		Microsoft.Win32.RegistryKey regKey = Microsoft.Win32.Registry.ClassesRoot.OpenSubKey(extension);

		if (regKey != null && regKey.GetValue("Content Type") != null)
		{
			mimeType = regKey.GetValue("Content Type").ToString();
		}

		return mimeType;
	}
}