Opens a Workbook from an ExcelTemplate object.
ExcelTemplateobject representing the workbook to open.
ReturnsWorkbook that is opened.
RemarksIf your template file is the new Office Open XML (.xlsx) format, you can pass it into the ExcelApplication.Open method just as you would a BIFF8 (.xls) Excel file. You will need to remember to give the output file a ".xlsx" extension when you call Save as ExcelWriter cannot convert .xlsx files to .xls
System.ExceptionIf there is a problem creating, opening, or writing to the file specified, or reading from the