Deletes a sheet or group of sheets from the current workbook
static int WorkbookDelete( LPCTSTR sheet_text );
Sheet_text is the name of the sheet to delete. If omitted, the currently active sheet or sheets is deleted.
Zero if the function has been called successfully; non-zero if the function could not be called. See Error codes for a list of return values.
See the Microsoft Excel on-line Help for full details about this function.