Excel 2007 Save File Formats : Workbook Save « Editing « Microsoft Office Excel 2007 Tutorial

Excel 2007 workbook: .xlsx

Excel 2007 workbook that contains Visual Basic for Applications (VBA) code: .xlsm

Excel 2007 workbook with a binary format for large or complex workbooks: .xlsb

Excel 97 to Excel 2003 workbook: .xls

XML document: .xml

Web page as a single file with an .htm file: .mht; .mhtml

Web page as a folder with an .htm file: .htm; .html

Excel 2007 template: .xltx

Excel 2007 template that includes preapproved macros: .xltm

Excel 97-2003 template: .xlt

Text file with tabs between the data: .txt

Excel workbook 2003 with the XML format: .xml

Excel workbook in the Excel 5.0/95 version: .xls

Text file with commas separating data: .csv

Text file with spaces separating data: .prn

Text file with commas separating data: .csv

Text file with a header and body: .dif

File divided into records by a return or Enter key: .slk

Excel 2007 add-in: .xlam

Excel 97-2003 add-in: .xla

File format developed by Adobe: .pdf

XPS Document Format:.xps