The xlsx file extension is used by Microsoft Excel for its workbooks (spreadsheets) in Open XML format. XLSX is the latest spreadsheet format used by Excel with adoption of XML formatting first used in Office 2000. While older xls files were binary in nature, *.xlsx spreadsheets are using somewhat altered XML scheme.

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Software that works with xlsx file extension

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XLSX file extension - Microsoft Excel Open XML workbook and spreadsheet

What is xlsx file? How to open xlsx files?

File type specification:

Microsoft Office file type icon Microsoft Office file type

Spreadsheet and workbook file type icon Spreadsheet and workbook file type

xlsx file icon: xlsx filetype icon

The xlsx file extension is associated with Microsoft Excel, one of the most popular and powerful tool for creating spreadsheets, graphs and much more.

The *.xlsx files are used in Microsoft Excel 2007/2010/2013 or Office 365 on-line service for workbooks and spreadsheet document files.

They serve the same purpose as the *.xls Microsoft Excel 97 to 2003 Workbook files, but use the new file extensions and file formats for Excel Spreadsheets based on Open XML data format. XLSX format uses ZIP compression for smaller file sizes.

MIME-type used for Microsoft Excel .xlsx spreadsheets:
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

The default software associated to xlsx file type:

Microsoft Excel icon

Microsoft Corporation logo Microsoft Excel  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft Excel is popular spreadsheet application distributed with Microsoft Office suite. Excel is able to calculating, contains graphing tools, pivot tables and own programming language based on Visual Basic. Excel supports charts, graphs or histograms generated from specified groups of cells. Excel also can change data between other Microsoft Office applications. Excel is available for Microsoft Windows, Mac OS X and various mobile platforms.

Office 365 icon

Microsoft Corporation logo Office 365  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Office 365 is a subscription-based service that gives users access to several services and apps from Microsoft Office platform.

The service is available in sever different subscription editions which cover different market segments, and offer different services and features. This include Office 365 Home Premium, Office 365 University, Office 365 Small Business, Office 365 Small Business Premium, Office 365 ProPlus, Office 365 Midsize Business and Office 365 Enterprise editions.

 

Microsoft Office icon

Microsoft Corporation logo Microsoft Office  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft Office is popular productivity suite for Microsoft Windows. Microsoft Office contains a set of applications and services used to work with documents (Microsoft Word), spreadsheets (Microsoft Excel), presentations (Microsoft Powerpoint), databases (Microsoft Access) etc..

Microsoft Office can be also used to manage e-mail accounts, tasks, calendars and contacts (Microsoft Outlook). Microsoft Office for Windows is distributed in four editions for Home, Academic and corporate sector.

Microsoft Excel for Mac icon

Microsoft Corporation logo Microsoft Excel for Mac  Apple macOS / Mac OS X software

Company or developer:
  Microsoft Corporation

Microsoft Excel for Mac is popular spreadsheet application used to analyze, organize and manage data and lists. It is able to create visually rich datasheets and tables with icons, data bars and color scales. Microsoft Excel for Mac is fully compatible with Microsoft Excel for Windows.

Microsoft Excel for iOS icon

Microsoft Corporation logo Microsoft Excel for iOS  Apple iOS (iPhone, iPad, iPod Touch devices) software

Company or developer:
  Microsoft Corporation

Microsoft Excel for iOS enables users to view, create, edit, and print Excel spreadsheets from iPhone, iPad or iPod Touch. It includes various features from desktop version of Microsoft Excel.

Microsoft Office Mobile for Android icon

Microsoft Corporation logo Microsoft Office Mobile for Android  Google Android software

Company or developer:
  Microsoft Corporation

Microsoft Office Mobile for Android is the official release of Microsoft Office optimized for Android phones and tablets with various features like Office for Windows and Mac like charts, animations, SmartArt graphics and shapes.

Microsoft Office Mobile for Android is recommended for devices with Android 4.3 and older.

Microsoft Office Mobile for Windows Phone icon

Microsoft Corporation logo Microsoft Office Mobile for Windows Phone  Windows Phone / Windows 10 Mobile software

Company or developer:
  Microsoft Corporation

Microsoft Office Mobile for Windows Phone allows users to view and edit Word, Excel, and PowerPoint documents from nearly anywhere. It includes various features from desktop version of Microsoft Office.

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Help how to open XLSX files:

Use Microsoft Excel 2007/2010 or similar office software to open the .xslx files.
If you have older Microsoft Office Suite version than version 2007/2010/2013, you can download import (open)/export (save) filters from Microsoft website - Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007/2010/2013 file formats.

How to convert file with extension XLSX:

If you have older Microsoft Office Suite version than version 2007, you can download import/export filters from Microsoft website - Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats.
Microsoft Excel supports some other file formats, If you want to save workbook to another format in Excel, you can choose menu File > Save as...

Find conversions from xlsx file:

xlsx to accdb

xlsx to arff

xlsx to docx

xlsx to mdb

xlsx to numbers

xlsx to xls

xlsx to xlsb

Find converter to xlsx file type:

gsheet to xlsx

numbers to xlsx

ods to xlsx

qpw to xlsx

wb3 to xlsx

wk4 to xlsx

xlsb to xlsx

File identification strings:

HEX code: 50 4B 03 04
ASCII code: PK

Related links:

Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats

List of software applications associated to the .xlsx file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open xlsx file, edit xlsx file, convert xlsx file, view xlsx file, play xlsx file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the xlsx files.

  • Open xlsx file
  • Save xlsx file
  • Edit xlsx file
  • Convert xlsx file
  • Create xlsx file
  • Import xlsx file
  • Export xlsx file
  • Print xlsx file
  • Recover xlsx file
  • Others xlsx file

Software that open xlsx file - Microsoft Excel Open XML workbook and spreadsheet

Click on the link to get more information about listed programs for open xlsx file action.

Microsoft Windows:

Main software associated with xlsx file by default:
Microsoft Excel small icon Microsoft Excel
Other suggested software:
Corel Quattro Pro small icon Corel Quattro Pro
OnlyOffice small icon OnlyOffice
Microsoft Project small icon Microsoft Project
Microsoft Works small icon Microsoft Works

Apple macOS / Mac OS X:

Main software associated with xlsx file by default:
Microsoft Excel for Mac small icon Microsoft Excel for Mac
Other suggested software:
Numbers for Mac small icon Numbers for Mac

Apple iOS (iPhone, iPad, iPod Touch devices):

Google Android:

Main software associated with xlsx file by default:
Microsoft Office Mobile for Android small icon Microsoft Office Mobile for Android
Other suggested software:
Microsoft Excel for Android small icon Microsoft Excel for Android

Windows Phone / Windows 10 Mobile:

Previous file extension
XLSM file extension

File-Extensions.org > Microsoft Office file types

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file extension XLT

 

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