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Gets or sets the culture information of the workbook.
The returned culture affects culture-related features such as localized formatting and formula behavior. If no culture has been explicitly set, use the thread's current culture.
CultureInfo Culture { get; set; }
Property Culture As CultureInfo
workbook.Culture = CultureInfo.GetCultureInfo("en-US");
worksheet.Range["A1"].Value = 43245.5922;
worksheet.Range["A1"].NumberFormat = "[$-x-sysdate]dddd, mmmm dd, yyyy";
string text = worksheet.Range["A1"].Text;
CultureInfo culture = workbook.Culture;