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Represents the format in which the workbook is saved.
public enum SaveFileFormat
Csv = 1Represents a csv file.
Html = 4Represents an html file.
Pdf = 2Represents a pdf file.
Sjs = 6Represents a SpreadJS .sjs file.
Xlsm = 3Represents an xlsm file.
Xlsx = 0Represents an xlsx file.
Xltx = 5Represents an xltx file.