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Microsoft Office file icon Microsoft Office file type extensions
(98 file extension database entries)

List of file types used by various applications from Microsoft Office productivity suite and Office 365 apps

List of common microsoft office files

Microsoft Office file extension list

List of file types used by various applications from Microsoft Office productivity suite and Office 365 apps.

This category of file extensions contains file types from the Microsoft Office productivity suite and its individual programs. The latest edition, Office 2016, is available for Windows and OS X in several editions that offer various combinations of productivity software and also as a subscription based platform - Office 365. The latest editions of Office offers the following programs:

  • Word (all editions)
  • Excel (all editions)
  • PowerPoint (all editions)
  • OneNote (all editions)
  • Outlook (Home and Business and higher)
  • Publisher (Professional and higher; Windows only)
  • Access (Professional and higher; Windows only)
  • Skype for Business (Professional Plus and higher; Windows only)
  • Additionally, there are two programs from the Office suite that are not part of any of the suites at this time, namely Visio and Project. These two can be only obtained as part of Office 365 subscription.

Over the years, users became familiar with most of the common Microsoft Office file extensions, with .doc, .xls, and .ppt files being probably the three most known. With the release of Office 2007, Microsoft was trying to leave those well-known extensions in the past and replace them with the new XML-based formats that have a 4-letter file extensions, with "x" being appended to the original extension, so for example .doc became .docx, .xls -> .xlsx, .ppt -> .pptx etc. The key difference is that the original files were saved in binary form and the new ones are XML-based. These new formats are still being used in the latest 2016 edition of Microsoft Office, but the older formats are still supported and can be opened in their respective programs.

Another change introduced in the 2007 Office release was that there are different extensions for files that have macros enabled and those that do not. Macro-enabled documents include a file name extension that ends with the letter "m" instead of an "x". For example a macro-enabled Word 2007 document has the .docm extension and thereby allows any user or software to recognize documents that allow additional code (macro).

 

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docx file icon file extension docxMicrosoft Word Open XML document
xlsx file icon file extension xlsxMicrosoft Excel Open XML workbook and spreadsheet
 file extension vsdxMicrosoft Visio drawing
one file icon file extension oneMicrosoft OneNote document
 file extension rpmsgMicrosoft Restricted Permission Message
mso file icon file extension msoMicrosoft Organization Chart chart data
doc file icon file extension docMicrosoft Word document (prior version 2007)
pub file icon file extension pubMicrosoft Publisher document
accdb file icon file extension accdbMicrosoft Access main database
xls file icon file extension xlsMicrosoft Excel 97 to 2003 workbook
asd file icon file extension asdMicrosoft Word auto-save document
mdb file icon file extension mdbMicrosoft Access database
mpp file icon file extension mppMicrosoft Project plan file
pptx file icon file extension pptxMicrosoft PowerPoint Open XML presentation
pip file icon file extension pipMicrosoft Office personalized settings
 file extension oftMicrosoft Outlook template
ppt file icon file extension pptMicrosoft PowerPoint 97 to 2003 presentation
vsd file icon file extension vsdMicrosoft Visio diagram document
pst file icon file extension pstMicrosoft Outlook personal storage table
xlsb file icon file extension xlsbMicrosoft Excel binary workbook
ppsx file icon file extension ppsxMicrosoft PowerPoint Open XML complete slide show
accde file icon file extension accdeMicrosoft Access compiled execute only database
snp file icon file extension snpMicrosoft Access report shapshot
xsn file icon file extension xsnMicrosoft Office InfoPath template form
mpd file icon file extension mpdMicrosoft Project database
 file extension crtxMicrosoft Office chart template
laccdb file icon file extension laccdbMicrosoft Access database lock file
xl file icon file extension xlMicrosoft Excel spreadsheet
mde file icon file extension mdeMicrosoft Access compiled database (application)
xla file icon file extension xlaMicrosoft Excel add-in
thmx file icon file extension thmxMicrosoft Office theme
xlsm file icon file extension xlsmMicrosoft Excel Open XML macro-enabled workbook
xlb file icon file extension xlbMicrosoft Excel toolbars settings
 file extension onepkgMicrosoft OneNote package
dot file icon file extension dotMicrosoft Word document template (up to Microsoft Word 2003 version)
dotx file icon file extension dotxMicrosoft Word XML document template
 file extension ostMicrosoft Outlook inbox off-line folder
svd file icon file extension svdMicrosoft Word document autosave file
ppsm file icon file extension ppsmMicrosoft PowerPoint macro-enabled Open XML complete slide show
olm file icon file extension olmOutlook for Mac e-mail database
mat file icon file extension matMicrosoft Access table shortcut
pps file icon file extension ppsMicrosoft PowerPoint 97 to 2003 complete slide show
xlam file icon file extension xlamMicrosoft Excel Open XML macro-enabled add-in
wbk file icon file extension wbkMicrosoft Word document saved backup
acl file icon file extension aclMicrosoft Office automatic correction list
 file extension obiRSS subscription file from Microsoft Outlook 2007 and above versions
 file extension iafMicrosoft Outlook exported account and email setting
vss file icon file extension vssMicrosoft Visio smartshapes data
pptm file icon file extension pptmMicrosoft PowerPoint macro-enabled Open XML presentation
 file extension opsMicrosoft Office profile settings
mdt file icon file extension mdtMicrosoft Access database template
accdr file icon file extension accdrMicrosoft Access runtime mode database
sldx file icon file extension sldxMicrosoft PowerPoint Open XML slide file
docm file icon file extension docmMicrosoft Word Open XML macro-enabled document
xlt file icon file extension xltMicrosoft Excel 97 to 2003 workbook template
xar file icon file extension xarMicrosoft Excel AutoRecover backup
slk file icon file extension slkMicrosoft Symbolic Link format
pot file icon file extension potMicrosoft PowerPoint 97 to 2003 template
xlm file icon file extension xlmMicrosoft Excel macro
mpt file icon file extension mptMicrosoft Project template
 file extension oabMicrosoft Outlook offline address book
xltx file icon file extension xltxMicrosoft Excel Open XML workbook template
potx file icon file extension potxMicrosoft PowerPoint Open XML presentation template
xll file icon file extension xllMicrosoft Excel add-in
ade file icon file extension adeMicrosoft Access compiled project
xlw file icon file extension xlwMicrosoft Excel workspace
ppam file icon file extension ppamMicrosoft PowerPoint macro-enabled Open XML add-in
mar file icon file extension marMicrosoft Access report shortcut
accdt file icon file extension accdtMicrosoft Access database template
grv file icon file extension grvMicrosoft SharePoint WorkSpace Groove data
ppa file icon file extension ppaMicrosoft PowerPoint 97 to 2003 add-in
dotm file icon file extension dotmMicrosoft Word Open XML macro-enabled document template
mdw file icon file extension mdwMicrosoft Access workgroup information
accda file icon file extension accdaMicrosoft Access add-in
xsf file icon file extension xsfMicrosoft Office InfoPath form definition
sldm file icon file extension sldmMicrosoft PowerPoint macro-enabled Open XML slide
mda file icon file extension mdaMicrosoft Access add-in
vst file icon file extension vstMicrosoft Visio flowchart
xltm file icon file extension xltmMicrosoft Excel Open XML macro-enabled workbook template
accdc file icon file extension accdcMicrosoft Access digitally signed database
xlc file icon file extension xlcMicrosoft Excel chart
mam file icon file extension mamMicrosoft Access macro shortcut
puz file icon file extension puzMicrosoft Publisher packed document
vdx file icon file extension vdxMicrosoft Visio XML drawing
accdp file icon file extension accdpMicrosoft Access project
maf file icon file extension mafMicrosoft Access form shortcut
 file extension xslbMicrosoft Excel data
wll file icon file extension wllMicrosoft Word add-in
pa file icon file extension paMicrosoft PowerPoint add-in
 file extension prfMicrosoft Outlook profile
potm file icon file extension potmMicrosoft PowerPoint macro-enabled Open XML template
vsx file icon file extension vsxMicrosoft Visio stencil XML document
maq file icon file extension maqMicrosoft Access query shortcut
accdu file icon file extension accduMicrosoft Access database wizard
 file extension cnvMicrosoft Word text conversion data
maw file icon file extension mawMicrosoft Access data access page
 file extension h1qMicrosoft Help merged query index
vtx file icon file extension vtxMicrosoft Visio XML template


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