Article
07/22/2014

File formats supported in Office 2010

Applies to: Office 2010

Topic Last Modified: 2011-05-18

Supported and unsupported file formats and their extensions are listed in the following tables for Microsoft Word 2010, Microsoft Excel 2010, and Microsoft PowerPoint 2010. This article also provides information about other kinds of supported and unsupported file formats.

In this article:

File formats that are supported in Word 2010
File formats that are supported in Excel 2010
File formats that are supported in PowerPoint 2010
Additional file format information

File formats that are supported in Word 2010

The following table describes the file formats that are supported in Word 2010, alphabetized by extension.

Extension	Name of file format	Description
.doc	Word 97–2003 Document	The binary file format for Word 97–2003.
.docm	Word Macro-Enabled Document	The XML-based and macro-enabled file format for Word 2010 and Office Word 2007. Stores Visual Basic for Applications (VBA) macro code.
.docx	Word Document	The default XML-based file format for Word 2010 and Office Word 2007.
.dot	Word 97–2003 Template	Template for Word 97–2003 files.
.dotm	Word Macro-Enabled Template	Template for creating new Word 2010 and Office Word 2007 files that contain macros. If you want to include UI customizations or macros in the template, use this file format.
.dotx	Word Template	Template for creating new Word 2010 and Office Word 2007 files that do not contain macros.
.htm, .html	Web Page	A Web page that is saved as a folder that contains an .htm file and all supporting files, such as images, sound files, cascading style sheets, scripts, and more. Good for posting on a site or editing with Microsoft Office FrontPage or another HTML editor.
.htm, .html	Web Page, Filtered	Saving in the Web Page, Filtered file format removes Microsoft Office-specific tags. If you save in filtered HTML and then re-open the file in an Office application, text and general appearance will be preserved. However, some features might work differently.
.mht; .mhtml	Single File Web Page	A Web page as a single file that includes an .htm file and all supporting files, such as images, sound files, cascading style sheets, scripts, and more.
.odt	OpenDocument Text	A file format for saving Word 2010 files so that they can be opened in document applications that use the OpenDocument format. You can also open documents in the .ods format in Word 2010. Formatting might be lost when users save and open .ods files.
.pdf	PDF	Portable Document Format (PDF), a PostScript-based electronic file format developed by Adobe Systems that preserves document formatting and enables file sharing. Files using the PDF file format can be saved but not opened by using Word 2010.
.rtf	Rich Text Format	RTF controls the representation and formatting of a document, both on the screen and in print. When they use the .rtf file format, documents created under different operating systems and with different software applications can be transferred between those operating systems and applications.
.txt	Plain Text	When you save a Word 2010 document as a .txt file, you lose all formatting.
.wps	Works 6-9 Document	This is the default file format of Microsoft Works, versions 6.0 through 9.0.
.xml	Word 2003 XML Document	The XML format supported in Office Word 2003.
.xml	Word XML Document	The XML file format supported in Word 2010 and Office Word 2007 (Open XML).
.xps	XPS Document	XML Paper Specification, a file format that preserves document formatting and enables file sharing. When the XPS file is viewed online or printed, it keeps exactly the format that you intended, and the data in the file cannot be easily changed. Files using the XPS Document file format can be saved but not opened by using Word 2010.

File formats that are supported in Excel 2010

The following tables describe the file formats that are supported in Excel 2010.

Extension	Name of file format	Description
.csv	CSV (Comma delimited)	Saves a workbook as a comma-delimited text file for use on another Windows operating system, and ensures that tab characters, line breaks, and other characters are interpreted correctly. Saves only the active sheet.
.csv	CSV (Macintosh)	Saves a workbook as a comma-delimited text file for use on the Macintosh operating system, and ensures that tab characters, line breaks, and other characters are interpreted correctly. Saves only the active sheet.
.csv	CSV (MS-DOS)	Saves a workbook as a comma-delimited text file for use on the MS-DOS operating system, and ensures that tab characters, line breaks, and other characters are interpreted correctly. Saves only the active sheet.
.dbf	DBF 3, DBF 4	dBase III and IV. Users can open these files formats in Excel. However, users cannot save an Excel file to dBase format.
.dif	DIF (Data Interchange Format)	Saves only the active sheet.
.htm, .html	Web Page	A Web page that is saved as a folder that contains an .htm file and all supporting files, such as images, sound files, scripts, and more.
.mht, .mhtml	Single File Web Page	A Web page that is saved as a single file that includes an .htm file and all supporting files, such as images, sound files, scripts, and more.
.ods	OpenDocument Spreadsheet	A file format for saving Excel 2010 files so that they can be opened in spreadsheet applications that use the OpenDocument Spreadsheet format, such as Google Docs and OpenOffice.org Calc. You can also open spreadsheets in the .ods format in Excel 2010. Formatting might be lost when you save and opening .ods files.
.pdf	PDF	Portable Document Format, a format that preserves document formatting and enables file sharing. When the PDF format file is viewed online or printed, it keeps the format that you intended. Data in the file cannot be easily changed. The PDF format is also useful for documents that will be reproduced by using commercial printing methods.
.prn	Formatted Text (Space delimited)	Lotus space-delimited format. Saves only the active sheet.
.slk	SYLK (Symbolic Link Format)	Saves only the active sheet.
.txt	Text (Tab delimited)	Saves a workbook as a tab-delimited text file for use on another Windows operating system, and ensures that tab characters, line breaks, and other characters are interpreted correctly. Saves only the active sheet.
.txt	Text (Macintosh)	Saves a workbook as a tab-delimited text file for use on the Macintosh operating system, and ensures that tab characters, line breaks, and other characters are interpreted correctly. Saves only the active sheet.
.txt	Text (MS-DOS)	Saves a workbook as a tab-delimited text file for use on the MS-DOS operating system, and ensures that tab characters, line breaks, and other characters are interpreted correctly. Saves only the active sheet.
.txt	Unicode Text	Saves a workbook as Unicode text, a character encoding standard that was developed by the Unicode Consortium. Saves only the active sheet.
.xla	Excel 97–2003 Add-In	The Excel 97–2003 Add-In, a supplemental program that runs additional code and supports VBA projects.
.xlam	Excel Add-In	The XML-based and macro-enabled Add-In format for Excel 2010 and Office Excel 2007. An Add-In is a supplemental program that runs additional code. Supports VBA projects and Excel 4.0 macro sheets (.xlm).
.xls	Excel 97–Excel 2003 Workbook	The Excel 97–Excel 2003 Binary file format.
.xls	Microsoft Excel 5.0/95 Workbook	The Excel 5.0/95 Binary file format.
.xlsb	Excel Binary Workbook	The binary file format for Excel 2010 and Office Excel 2007. This is a fast load-and-save file format for users who need the fastest way possible to load a data file. Supports VBA projects, Excel 4.0 macro sheets, and all the new features that are used in Excel 2007 and Excel 2010. However, this is not an XML file format and is therefore not optimal for accessing and manipulating content without using Excel 2010 or Excel 2007 and the object model.
.xlsm	Excel Macro-Enabled Workbook	The XML-based and macro-enabled file format for Excel 2010 and Office Excel 2007. Stores VBA macro code or Excel 4.0 macro sheets (.xlm).
.xlsx	Excel Workbook	The default XML-based file format for Excel 2010 and Office Excel 2007. Cannot store VBA macro code or Microsoft Excel 4.0 macro sheets (.xlm).
.xlt	Excel 97 - Excel 2003 Template	The Excel 97 - Excel 2003 Binary file format for an Excel template.
.xltm	Excel Macro-Enabled Template	The macro-enabled file format for an Excel template for Excel 2010 and Office Excel 2007. Stores VBA macro code or Excel 4.0 macro sheets (.xlm).
.xltx	Excel Template	The default file format for an Excel template for Excel 2010 and Office Excel 2007. Cannot store VBA macro code or Excel 4.0 macro sheets (.xlm).
.xlw	Excel 4.0 Workbook	An Excel 4.0 file format that saves only worksheets, chart sheets, and macro sheets. You can open a workbook in this file format in Excel 2010. However, you cannot save an Excel file to this file format.
.xml	XML Spreadsheet 2003	XML Spreadsheet 2003 file format.
.xml	XML Data	XML Data format.
.xps	XPS Document	XML Paper Specification, a file format that preserves document formatting and enables file sharing. When the XPS file is viewed online or printed, it maintains exactly the format that you intended, and the data in the file cannot be easily changed.

Note

Excel 2010 does not support the following:

Excel Chart (Excel 2.0, 3.0, and 2.x file formats) (.xlc)
Lotus 1-2-3 file formats (all versions) (.wk1, .wk2, .wk3, .wk4, .wks)
Microsoft Works (all versions) (.wks)
DBASE II file format (.dbf)
Quattro Pro for MS-DOS file format (.wq1)
Quattro Pro 5.0 and 7.0 for Windows (.wb1, .wb3)

File formats that are supported in PowerPoint 2010

The following tables describe the file formats that are supported in PowerPoint 2010.

Extension	Name of file format	Description
.bmp	Device Independent Bitmap	A slide that is saved as a graphic for use on Web pages.
.emf	Enhanced Windows Metafile	A slide that is saved as a 32-bit graphic (for use with Microsoft Windows 95 and later versions).
.gif	GIF Graphics Interchange Format	A slide that is saved as a graphic for use on Web pages.
.jpg	JPEG File Interchange Format	A slide that is saved as a graphic for use on Web pages.
.odp	OpenDocument Presentation	A format that can be opened in presentation applications that use the OpenDocument Presentation format, such as Google Docs and OpenOffice.org Impress. You can also open presentations in the .odp format in PowerPoint 2010. Some information might be lost when you save and open .odp files.
.pdf	PDF	Portable Document Format, a PostScript-based electronic file format developed by Adobe Systems that preserves document formatting and enables file sharing.
.png	PNG Portable Network Graphics Format	A slide that is saved as a graphic for use on Web pages.
.pot	PowerPoint 97–2003 Template	A template for PowerPoint 97 to Office PowerPoint 2003 presentations.
.potm	PowerPoint Macro-Enabled Template	A template for PowerPoint 2010 and Office PowerPoint 2007 presentations that contain macros.
.potx	PowerPoint Template	A template for creating new PowerPoint 2010 and Office PowerPoint 2007 presentations.
.ppa	PowerPoint 97-2003 Add-In	A PowerPoint 97 to Office PowerPoint 2003 add-in.
.ppam	PowerPoint Add-In	An add-in that stores custom commands, Visual Basic for Applications (VBA) code, and specialized features.
.pps	PowerPoint 97–2003 show	A presentation that always opens in Slide Show view instead of in Normal view.
.ppsm	PowerPoint Macro-Enabled Show	A slide show that includes macros.
.ppsx	PowerPoint Show	A presentation that always opens in Slide Show view instead of in Normal view.
.ppt	PowerPoint 97–2003 Presentation	The default PowerPoint 97 to Office PowerPoint 2003 format.
.pptm	PowerPoint Macro-Enabled Presentation	A presentation that contains Visual Basic for Applications (VBA) code.
.pptx	PowerPoint Presentation	The default PowerPoint 2010 and Office PowerPoint 2007 XML-based file format.
.pptx	PowerPoint Picture Presentation	A PowerPoint 2010 or 2007 presentation where each slide is converted into a picture. Saving a file as a PowerPoint Picture presentation will reduce the file size. However, some information will be lost.
.rtf	Outline/RTF	A presentation outline that is saved as a text-only document that provides smaller file sizes and the ability to share macro-free files with other users who might not have the same version of PowerPoint or the operating system that you have. Any text in the notes pane is not saved with this file format.
.thmx	Office Theme	A style sheet that includes definitions of a color theme, font theme, and effect theme.
.tif	TIFF Tag Image File Format	A slide that is saved as a graphic for use on Web pages.
.wmf	Windows Metafile	A slide that is saved as a 16-bit graphic (for use with Microsoft Windows 3.x and later versions).
.wmv	Windows Media Video	A presentation that is saved as a video. PowerPoint 2010 presentations can be saved at High Quality (1024 x 768, 30 frames per second); Medium Quality (640 x 480, 24 frames per sec); and Low Quality (320 X 240, 15 frames per second). The WMV file format plays on many media players, such as Windows Media Player.
.xml	PowerPoint XML Presentation	The XML format that is supported in PowerPoint 2010 and Office PowerPoint 2007.
.xps	XPS Document	XML Paper Specification (XPS), an electronic paper format for exchanging documents in their final form.

Note

PowerPoint 2010 does not support the following:

Opening or saving to PowerPoint 95 (or earlier) file formats
Pack and Go Wizard (.ppz) files.
Web Page (.htm, .html) files

Additional file format information

This section provides additional file formats and whether they are supported in the applications in Office 2010.

Microsoft Office Clipboard file formats

You can paste data from the Microsoft Office Clipboard into Word 2010, Excel 2010, and PowerPoint 2010 if the Office Clipboard data is in one of the formats shown in the following table.

File format	Extension	Description
Picture	.wmf or .emf	Pictures in Windows Metafile Format (WMF) or Windows Enhanced Metafile Format (EMF). Note If you copy a Windows metafile picture from another program, Excel pastes the picture as an enhanced metafile.
Bitmap	.bmp	Pictures stored in Bitmap format (BMP).
Microsoft Excel file formats	.xls	Binary file formats for Excel versions 5.0/95, Excel 97-2003, and Excel 2010.
SYLK	.slk	Symbolic Link Format.
DIF	.dif	Data Interchange Format.
Text (tab-delimited)	.txt	Tab-separated text format.
CSV (Comma-delimited)	.csv	Comma-separated values format.
Formatted text (Space-delimited)	.rtf	Rich Text Format (RTF). Only from Excel.
Embedded object	.gif, .jpg, .doc, .xls, or .bmp	Microsoft Excel objects, objects from properly registered programs that support OLE 2.0 (OwnerLink), and Picture or another presentation format.
Linked object	.gif, .jpg, .doc, .xls, or .bmp	OwnerLink, ObjectLink, Link, Picture, or other format.
Office drawing object	.emf	Office drawing object format or Picture (Windows enhanced metafile format, EMF).
Text	.txt	Display Text, OEM Text.
HTML	.htm, .html	Hypertext Markup Language. Note When you copy text from another program, Excel pastes the text in HTML format, regardless of the format of the original text.
Single File Web Page	mht, .mhtml	This file format integrates inline graphics, applets, linked documents, and other supporting items referenced in the document.

Opening or viewing unsupported file formats

If the file format that you want to use is not supported in Word 2010, Excel 2010, or PowerPoint 2010, you can try the following methods to open the file.

Search the Internet for a company that makes file format converters for file formats that are not supported in the application.
Save to a file format that another program supports. For example, you might want to import your Word, Excel, or PowerPoint file into another program that does not support the Word, Excel, or PowerPoint. However, the other program might support importing another supported file format, such as a text file format. In this case, you can save your work in text file format, and then from the other program, import the text file.