private static bool NumberFormatsAreEqual(NumberingFormat nf, IXLNumberFormat xlNumberFormat)
{
var newXLNumberFormat = new XLNumberFormat();
if (nf.FormatCode != null && !XLHelper.IsNullOrWhiteSpace(nf.FormatCode.Value))
newXLNumberFormat.Format = nf.FormatCode.Value;
else if (nf.NumberFormatId != null)
newXLNumberFormat.NumberFormatId = (Int32)nf.NumberFormatId.Value;
return newXLNumberFormat.Equals(xlNumberFormat);
}
