/// <summary>
/// Determines whether [has sheet with name] [the specified sheet name].
/// </summary>
/// <param name="sheets">The sheets.</param>
/// <param name="sheetName">Name of the sheet.</param>
/// <returns></returns>
public static bool HasSheetWithName(this DocumentFormat.OpenXml.Spreadsheet.Sheets sheets, string sheetName)
{
return((from s in sheets.Descendants <DocumentFormat.OpenXml.Spreadsheet.Sheet>()
where s.Name != null && s.Name.HasValue && s.Name.Value == sheetName
select s).Any());
}
