I have read a workbook from a template(xltm), added rows etc and need to save it to a normal workbook file (xlsx). How do I do that.

SpreadsheetDocument doc = SpreadsheetDocument.Open(@"\Recon.xltm",false);
WorkbookPart wbPart = doc.WorkbookPart;


//Manupilate all the worksheets here


//How do I change where to save this document???????

//Close the document
doc.Close();