| FarPoint.Web.Spread Assembly > FarPoint.Web.Spread Namespace > FpSpread Class > IsExcelFile Method : IsExcelFile(String,ExcelWorkbookType,Boolean) Method | 
'Declaration Public Overloads Function IsExcelFile( _ ByVal fileName As String, _ ByRef workbookType As ExcelWorkbookType, _ ByRef isEncrypt As Boolean _ ) As Boolean
| Exception | Description | 
|---|---|
| System.IO.FileNotFoundException | Specified file is not found | 
| System.ArgumentNullException | No file name is specified (or specified file name is null) | 
| System.ArgumentException | No file name is specified (or specified file name is empty) | 
Target Platforms: Windows 7, Windows 8, Windows Vista, Windows Server 2000, Windows 2000 Professional, Windows XP Professional, Windows NT 4.0 Workstation, SP6, Windows NT 4.0 Server, SP6