Office file formats

Office file formats

Starting with Office 2007, Microsoft switched to Office Open XML (OOXML) as the default file formats for its applications. However, the legacy .doc (Word), .xls (Excel) and .ppt (PowerPoint) file formats are still supported in Office and widely used for compatibility with documents created in versions of Office from Office 97 to Office 2003. The older, legacy formats are used worldwide and are expected to remain popular for years. For more details on the new formats summarized below, see Office Open XML.


  .docx   Document
  .docm   Macro
  .dotx   Template
  .dotm   Template and macro


  .xlsx   Worksheet
  .xlsb   Fast binary worksheet
  .xlsm   Macro
  .xltx   Template
  .xltm   Template and macro
  .xlam   Add-in and macro


  .pptx   Presentation
  .pptm   Macro
  .potx   Template
  .potm   Template and macro
  .ppam   Add-in
  .ppsx   Slide show
  .ppsm   Slide show and macro
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
The main appeal of the app is that it works with Microsoft Office file formats, even if they're not stored on Google Drive, the Washington Post reports.
"We started over 10 years ago developing the product, and over the last 10 years, we've spent significant resources in understanding Microsoft Office file formats," said Jonathan Crow, ThinkFree's director of marketing.
A CD in the box adds ClearVue, a file viewing package for Office file formats, as well as modem drivers so the phone can act as a dial-up modem for a laptop over Bluetooth.
MS Office file formats have evolved every time the associated application evolves.
"I believe that the increased use of .3D in communicating data is due to the ability to include 2D drawings and other Microsoft Office file formats in a single file and email it easily around the world.
Focusing on software Fowler pointed to work Sun engineers undertook assessing Office file formats for interoperability with Sun's StarOffice suite.
Office 11 documents can be saved either as XML documents or in traditional Office file formats (.doc for Word, .xls for Excel, etc.).
Schools are also given free access to Click-N-Run Warehouse (, an additional productivity software, similar to OpenOffice, which offers a full-featured office suite with word processing, spreadsheet, presentation manager and drawing programs--all capable of reading and writing in Microsoft Windows and Microsoft Office file formats.
As Tim O'Reilly of O'Reilly & Associates points out: "Microsoft's lock in on its Office file formats is arguably at least as important to their monopoly position as their control of the operating system itself."

Full browser ?