File format reference for Word, Excel, and PowerPoint

Supported file formats and their extensions are listed in the following tables for Word, Excel, and PowerPoint.

File formats that are supported in Word

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

Extension Name of file format Description
.doc
Word 97-2003 Document
The binary file format for Word 97-Word 2003.
.docm
Word Macro-Enabled Document
The XML-based and macro-enabled file format for Word 2016, Word 2013, 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 2016, Word 2013, Word 2010, and Office Word 2007.
.docx
Strict Open XML Document
Conforms to the Strict profile of the Open XML standard (ISO/IEC 29500). This profile of Open XML doesn't allow a set of features that are designed specifically for backward-compatibility with existing binary documents, as specified in Part 4 of ISO/IEC 29500.
.dot
Word 97-2003 Template
Template for Word 97-Word 2003 files.
.dotm
Word Macro-Enabled Template
Template for creating new Word 2016, Word 2013, Word 2010, and Office Word 2007 files that contain macros. Users who want to include UI customizations or macros in the template should use this file format.
.dotx
Word Template
Template for creating new Word 2016, Word 2013, 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 users save in filtered HTML and then re-open the file in an Office application, text and general appearance are 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 2016 and Word 2013 files so that they can be opened in document applications that use the OpenDocument format. Users can also open documents in the .odt format in Word 2016 and Word 2013. Formatting might be lost when users save and open .odt files.
.pdf
PDF
Portable Document Format (PDF), a PostScript-based electronic file format that was developed by Adobe Systems. It preserves document formatting and enables file sharing.

Files that use the PDF file format can be saved and opened by using Word 2016 and Word 2013.

Important: PDF files might not have a perfect page-to-page correspondence with the original. For example, the pages might break at different locations.
.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 users save a document as a .txt file, the document loses 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 2016, Word 2013, 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 users intended, and the data in the file cannot be easily changed.

You can use Word 2016 or Word 2013 to save documents in the XPS Document file format, but you can't open them by using Word 2016 or Word 2013.

File formats that are supported in Excel

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

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 makes sure 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 makes sure 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 makes sure 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 2016 and Excel 2013, but, users can't 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 2016 and Excel 2013 files so that they can be opened in spreadsheet applications that use the OpenDocument Spreadsheet format, such as Google Docs and OpenOffice.org Calc. Users can also open spreadsheets in the .ods format in Excel 2016 and Excel 2013. When users save and open .ods files, they might lose formatting.
.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 users 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 makes sure 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 makes sure 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 makes sure 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 2016, Excel 2013, 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 2016, Excel 2013, and 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. But, this is not an XML file format and is therefore not optimal for accessing and manipulating content without using Excel 2016, Excel 2013, Excel 2010 or Excel 2007 and the object model.
.xlsm
Excel Macro-Enabled Workbook
The XML-based and macro-enabled file format for Excel 2016, Excel 2013, 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 2016, Excel 2013, Excel 2010, and Office Excel 2007. Can't store VBA macro code or Microsoft Excel 4.0 macro sheets (.xlm).
.xlsx
Strict Open XML Spreadsheet
An ISO strict version of the Excel Workbook file format (.xlsx).
.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 2016, Excel 2013, 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 2016, Excel 2013, Excel 2010, and Office Excel 2007. Can't 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. Users can open a workbook in this file format in Excel 2016 and Excel 2013. But, users can't 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 users intended, and the data in the file cannot be easily changed.

File formats that are supported in PowerPoint

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

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.
.mp4
MPEG-4 Video
A presentation that is saved as a video.
.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. Users can also open presentations in the .odp format in PowerPoint. Some information might be lost when users save and open .odp files.
.pdf
PDF
Portable Document Format, a PostScript-based electronic file format that was developed by Adobe Systems. It 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 2016, PowerPoint 2013, PowerPoint 2010, and Office PowerPoint 2007 presentations that contain macros.
.potx
PowerPoint Template
A template for creating new PowerPoint 2016, PowerPoint 2013, 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 2016, PowerPoint 2013, PowerPoint 2010, and Office PowerPoint 2007 XML-based file format.
.pptx
PowerPoint Picture Presentation
A PowerPoint 2016, PowerPoint 2013, PowerPoint 2010 or PowerPoint 2007 presentation where each slide is converted into a picture. Saving a file as a PowerPoint Picture presentation reduces the file size, but some information is lost.
.pptx
Strict Open XML Presentation
An ISO strict version of the PowerPoint Presentation file format (.pptx).
.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. 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 2016 and PowerPoint 2013 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 2016, PowerPoint 2013, PowerPoint 2016, PowerPoint 2010, and Office PowerPoint 2007.
.xps
XPS Document
XML Paper Specification (XPS), an electronic paper format for exchanging documents in their final form.

Unsupported file formats in Office

Office applications do not support the file formats described in the following table

Application Unsupported file format
Excel
- 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)
PowerPoint
- 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 2016.

Microsoft Office Clipboard file formats

Users can paste data from the Office Clipboard into Word, Excel, and PowerPoint 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 users copy a Windows metafile picture from another program, Excel pastes the picture as an enhanced metafile.
Bitmap
.bmp
Pictures stored in Bitmap format (BMP).
Excel file formats
.xls
Binary file formats for Excel versions 5.0/95, Excel 97-2003, Excel 2013, and Excel 2016.
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
Excel objects, Excel 2013 objects, objects from correctly 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 users 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 users want to use is not supported, they 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, users might want to import their Word, Excel, or PowerPoint file into another program that does not support the application's native file format. However, the other program might support importing another supported file format, such as a text file format. In this case, users can save their work in text file format, and then from the other program, import the text file.

XML file name extension reference for Office

Compatibility and telemetry in Office