Lire une date de XLSX à l'aide du SDK XML ouvert

public static bool TryParseExcelDateTime(string excelDateTimeAsString, out DateTime dateTime)
{
    double oaDateAsDouble;
    if (!double.TryParse(excelDateTimeAsString, out oaDateAsDouble)) //this line is Culture dependent!
        return false;
    //[...]
    dateTime = DateTime.FromOADate(oaDateAsDouble);
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