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List of common microsoft office file extensions
List of documents and other files that originate from Microsoft Offcie productivity suite.
Common microsoft office files may change in time as the popularity and significance of some formats can change.
Whole category of microsoft office files contains now 98 file types. Show all microsoft office file types.
Files with accdb extension are main databases from Microsoft Access (Microsoft Office or Office 365) database management software from version 2007. | |
Files with accdt file extension can be usually found as database templates for Microsoft Access database management software. Introduced first in version 2007. | |
 doc | doc file extension is commonly used for text documents created in Microsoft Word word processor before version 2007. Word DOC documents can be opened in almost every (if not every) other word processor, such as OpenOffice.org Writer or iWork Pages. |
 docm | A docm file extension is used for default macro-enabled document format of latest versions of Microsoft Word. Such documents may contain additional VBA scripts or macros, that enhance some functions of the Word document. |
 docx | Files with docx extension are documents written and saved using Microsoft Word word processor edition 2007 or later. DOCX format replaced the previously used DOC format, moving from binary files to Open XML schema-based documents. They are supported in almost every modern word-processing tools. |
 dot | A dot file extension is used by Microsoft Word, a word processor that is distributed as a part of Microsoft Office. A dot file contains document template (predefined document type and format). A dot file extension is used by Microsoft Word 97 to 2003. |
 dotm | A dotm file extension is related to Microsoft Word 2007 and later. A dotm file stores Open XML macro-enabled document template. |
 dotx | A dotx file extension is used for a main open XML document template format of Microsoft Word. Templates are generally used to save predefined look and settings of documents for quick creation of documents that have same look. DOTX format is a successor to previously used DOT format. Some other word processors are also able to open dotx files, however they wont probably use most of the Microsoft Word specific formatting. |
Files with mdb extension can be found as databases from Microsoft Access database management system. Used in older version, but still supported in modern Access. | |
Files with mpd file extension can be mainly found as databases from Microsoft Project program. | |
 mpp | Files with mpp extension can be usually found as plans (projects) made using Microsoft Project project management software program developed by Microsoft. |
 mpt | Files with mpt file extension can be typically found as projects templates for the Microsoft Project program. |
 oft | Files with oft extension are used for Microsoft Outlook e-mail message template files. oft files are used for specifying future e-mail documents to use the predefined formatting. Microsoft Outlook e-mail message template files can be stored in three file formats: plain text, HTML document format and Rich Text Format (RTF). |
 one | Files with one extension can be found as data files from OneNote, a personal information management program from the Microsoft Office suite. The .one file can contain various types of information, such as text notes, images, video clips, etc. |
| onepkg | Files with onepkg extension can be found as note bundles created with the Microsoft OneNote. It is basically an archive that contains one or more notes saved together. |
 ost | An ost file extension is used for Microsoft Outlook Offline Folders files. The ost files are used to store e-mail messages and other data download from an Microsoft Exchange server. Microsoft Outlook Offline Folders files are very similar to Outlook personal folders files (.pst files). |
 pot | Files with pot file extension can be found as PowerPoint templates for version 97 to 2003. Used to quickly create presentations with same layout and settings. |
 potx | A potx file extension is associated with templates for presentations created in latest versions of Microsoft PowerPoint. |
 pps | Files with pps extension are presentations from Microsoft PowerPoint presentation software. PowerPoint's PPS slide shows are basically sequences of screens, often used for presentation purposes. |
 ppsx | Files with ppsx extension are used for presentation slide shows created in the popular presentations maker Microsoft PowerPoint. PPSX format is used for complete slideshows that also may include audio or video effects. |
 ppt | A ppt file extension is traditionally used for Microsoft PowerPoint presentations. PowerPoint presentation can contain text, pictures, audio or video data. Sometimes also called slide shows. |
 pptm | Files with pptm extension are related to Microsoft PowerPoint presentation software distributed as a part of Microsoft Office suite. A pptm file stores presentation with enabled macros. |
 pptx | Files with pptx extension are presentations from modern version of PowerPoint from Microsoft Office / Office 365. PowerPoint slide shows are basically set of screens which can include text, graphic, sounds or videos used for various presentation purposes. |
 pst | A pst file extension is used for storage file format of Microsoft Outlook. PST file contains stored emails, calendars, contacts in one single file. |
 pub | Files with pub extension are in most cases documents created in Microsoft Publisher, a desktop publishing application from Microsoft Office suite. PUB documents are much more complex than common Word files and give more emphasis to design and page layout, rather than actual text. |
Files with snp file extension are most notably known to be snapshots generated from older Microsoft Access databases. Used for viewing purposes only. | |
 thmx | Files with thmx extension are themes for Microsoft Office that can customize the appearance of documents created in the program. Its some sort of universal looking template across all supported Office applications - Excel, Word and PowerPoint. |
 vsd | Files with vsd extension can be most notably found as flowcharts and diagrams created in older versions of Microsoft Visio program. |
 vsdx | Files with vsdx extension are almost always graphics diagrams made and saved in latest versions of Microsoft Visio diagramming program. |
 xls | Files with xls extension are best known as spreadsheets from Microsoft Excel. A spreadsheet is basically a grid of cells sorted in rows and columns. Each cell can contain text, numeric or formula data. Excel XLS spreadsheets can be opened in most other similar programs, such as OpenOffice.org Calc. |
 xlsm | Files with xlsm extension are used for workbooks of spreadsheets created in Microsoft Excel that also include macros, that enhance the functionality of the spreadsheet but some automation features. Other spreadsheets might open xlsm files as well, however they most likely wont be able to use the Excel specific formatting and macros. |
 xlsx | Files with xlsx extension are s used by Microsoft Excel for its workbooks (spreadsheets) in Office Open XML format. XLSX is the latest spreadsheet format used by Excel with the adoption of XML formatting first used in Office 2007. While older xls files were in proprietary binary file format, xlsx spreadsheets use a somewhat altered XML scheme. |
This is a list of some the most common file types from this category and may change in time as the popularity and significance of some formats can change. Whole category of microsoft office files contains now 98 file types. Show all microsoft office files.
