44 Microsoft Excel Template 97-2003 Spreadsheet A template document that forms a basis for Microsoft Excel workbooks. Text 1 Digital Preservation Department / The National Archives 02 Aug 2005 This format is identifiable via a container signature in DROID 6 and later. 13 Sep 2018 application/vnd.ms-excel MIME x-fmt/17 PUID 93 Microsoft Corporation Microsoft Corporation 93 Microsoft Corporation Microsoft Corporation xlt File extension Has priority over 684 Microsoft Excel 97-2003 Workbook (xls) 8 & 8X