Microsoft Office

Version365(as of 2/11/2021)
PlatformsWindows, Mac
Go to Website
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Rating:4.4  |  211 Votes

Main Features

  • Includes Word, Excel, PowerPoint, Outlook, and OneNote
  • Uses the widely-used Open XML format for saving documents
  • Allows plugins to be installed to add functionality
  • Enables real-time co-authoring capabilities
  • Provides Office 365 Planner for helping teams organize work

Software Overview

Microsoft Office, also known as Microsoft 365, is an industry-standard suite of office productivity applications. The suite is available as a subscription (365) or as a one-time purchase (Home & Student 2019) for PCs and Macs, Android and iOS mobile devices, and online as a web application.

The Office suite consists of the following applications:

  • Microsoft Word - A word processing application used to create documents for business and personal purposes
  • Microsoft Excel - A spreadsheet application used to organize, manipulate, and visualize data
  • Microsoft PowerPoint - A presentation application used to create slide shows
  • Microsoft Outlook - An email client used to compose and receiving messages, and organize personal information
  • Microsoft OneNote - A notebook application used to create free-form pages of notes

The suite may also include Microsoft Publisher, Microsoft Access, and access to OneDrive and Teams. Word, Excel, and PowerPoint all utilize the Open XML format (.DOCX, .PPTX, and .XLSX) for saving files, but also support their legacy formats (.DOC, .XLS, and .PPT). Office applications also support add-ins, or plugins, that you can download to extend the capabilities of the programs.

Whether it is used for business, educational, or personal use, Microsoft Office is the leading office productivity suite. You can purchase Office with a one-time payment or as a subscription. Free suites, such as Apache OpenOffice, can be used as a substitution in some cases, but since Microsoft Office is standardized within the business and educational community, the price of Office is still worth the purchase.

Primary File Type

docx icon.DOCXMicrosoft Word Document

Supported File Types

ExtensionFile Type
.DOCXMicrosoft Word Document
.ACCDBAccess 2007 Database
.BKSMicrosoft Works Spreadsheet Backup File
.CRTXOffice 2007 Chart Template File
.CSVComma-Separated Values File
.CUBAnalysis Services Cube File
.CVRMicrosoft Crash Report File
.DOCMicrosoft Word Document (Legacy)
.DOCHTMLMicrosoft Word HTML Document
.DOCMMicrosoft Word Macro-enabled Document
.DOCMHTMLMicrosoft Word MIME HTML Document
.DOCXMLMicrosoft Word XML Document
.DOTMicrosoft Word Document Template (Legacy)
.DOTHTMLMicrosoft Word HTML Document Template
.DOTMMicrosoft Word Macro-Enabled Document Template
.DOTXMicrosoft Word Template
.DQYMicrosoft Excel Query
.EFTXOffice 2007 Theme Effect File
.EXDControl Information Cache File
.FFAFind Fast Status File
.FFLFind Fast Document List
.FFOFind Fast Document Properties Cache
.FFXMicrosoft Find Fast Index
.GCSXMicrosoft Office SmartArt Color File
.GLOXMicrosoft Office SmartArt Graphics Layout File
.GLYMicrosoft Word Glossary File
.GQSXMicrosoft Office SmartArt Styles File
.GRAMicrosoft Graph File
.MDBMicrosoft Access Database
.MGCMicrosoft Clip Organizer Media Catalog
.MMLMicrosoft Clip Organizer File
.MMWMicrosoft Clip Organizer Media Catalog File
.OBDOffice Binder Document
.ODCOffice Data Connection File
.OFFICEUIMicrosoft Office UI Customization File
.OLKOutlook Address Book File
.ONEOneNote Document
.ONEPKGMicrosoft OneNote Package
.ONETOC2Microsoft OneNote Table of Contents
.OTMOutlook Macro File
.PIPOffice Personalized Settings File
.POTXMicrosoft PowerPoint Presentation Template
.PPTMicrosoft PowerPoint Presentation (Legacy)
.PPTXMicrosoft PowerPoint Presentation
.PWIPocket Word Document
.QATMicrosoft Office Quick Access Toolbar File
.RTFRich Text Format File
.SHSMicrosoft Scrap File
.THMXOffice 2007 Theme
.TSVTab-Separated Values File
.TXTPlain Text File
.WBKMicrosoft Word Document Backup File
.XARMicrosoft Excel Auto-Recovery File
.XLMicrosoft Excel Spreadsheet
.XLBMicrosoft Excel Toolbar Settings File
.XLCMicrosoft Excel Chart
.XLDMicrosoft Excel Database
.XLKMicrosoft Excel Backup File
.XLMMicrosoft Excel Macro
.XLSMicrosoft Excel Spreadsheet (Legacy)
.XLSBMicrosoft Excel Binary Spreadsheet
.XLSHTMLMicrosoft Excel HTML Spreadsheet
.XLSMMicrosoft Excel Macro-Enabled Spreadsheet
.XLSXMicrosoft Excel Spreadsheet
.XLTMicrosoft Excel Spreadsheet Template (Legacy)
.XLTHTMLMicrosoft Excel HTML Spreadsheet Template
.XLTMMicrosoft Excel Macro-Enabled Spreadsheet Template
.XLTXMicrosoft Excel Spreadsheet Template
.XLVMicrosoft Excel Visual Basic Module
.XLWMicrosoft Excel Workbook
.XLWMicrosoft Excel Workspace

Additional Related File Types

ExtensionFile Type
.CNVOffice Converter File
.EDIElectronic Data Interchange File
.FM3Lotus 1-2-3 Spreadsheet Format File
.GPRGenePix Results File
.IIFIntuit Interchange Format File
.INFOGeneric Information File
.INIWindows Initialization File
.IQYInternet Query
.JRTFJAmes OS Rich Text File
.LSTData List
.MDMarkdown Documentation File
.MDIMicrosoft Document Imaging File
.ODSOpenDocument Spreadsheet
.OPALMicrosoft Office User Settings File
.OPAXMicrosoft Office User Settings File
.OPSOffice Profile Settings File
.PDEProntoDoc for Excel Document Template
.PDERProntoDoc for Excel Conventional Document
.PPTMMicrosoft PowerPoint Macro-Enabled Presentation
.WLLMicrosoft Word Add-in File
.XLAMicrosoft Excel Add-In File
.XLAMMicrosoft Excel Macro-Enabled Add-In
.XLLMicrosoft Excel Add-in
Updated 2/11/2021