| Overload | Description |
|---|---|
| IsExcelStream(Stream) | Opens the specified file and determines whether it meets the minimal requirements to be considered an Excel-compatible stream. |
| IsExcelStream(Stream,ExcelWorkbookType,Boolean) | Opens the specified file and determines whether it meets the minimal requirements to be considered a stream containing an Excel workbook. |
Target Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, Windows Vista, Windows Server 2008 family