What is an XLSX file and how do I Open?

Welcome to our article all about XLSX files! We’ll get into common errors and how to convert an XLSX file a little further down this article, but first, let’s discuss what an XLSX file actually is, and how to open one.

Table of Contents

how to open xlsx file

An XLSX File is an Excel spreadsheet made by Microsoft Excel, for example, Open Office Calc or Apple Numbers.

It stores information in worksheets, which contain cells arranged in a lattice of rows and columns, and may likewise contain diagrams, numerical capacities, styles, and arranging.

XLSX files are normally used to store financial information and to make basic or complex numerical models.


Except if you’ve purposely installed a program to your PC that can open XLSX files, at that point double-tapping on one will do nothing valuable.

Rather, you need a particular program on your PC that can recognize the XLSX file.

In spite of the fact that Microsoft Excel (version 2010 and more up to date) is the primary programming system used to both open XLSX files and alter XLSX files, you can install the Microsoft Office Compatibility Pack to open, edit, and save XLSX files using a more established version of Excel.

how to open xlsx file in windows

On the off chance that you have no intention to edit the XLSX file, and you simply need to view it, you can install the free Microsoft Office Excel Viewer.

It supports printing and duplicating information out of the XLSX file which may be all you have to do.

You can likewise open and edit XLSX files without Excel, totally free, utilizing Kingsoft Spreadsheets, OpenOffice Calc, or LibreOffice Calc.

In case you’re on a Mac, Apple Numbers underpins XLSX files as well.

Google Sheets, Microsoft Excel Online is a couple of different ways you can open and edit XLSX files for free.

Going this course expects you to transfer the XLSX file to the site before you can roll out any improvements.

In the event that you use the Chrome internet browser, you can install Office Editing for Docs, Sheets and Slides as an extension, which allows you to open and edit XLSX files straightforwardly in the program, either by hauling a neighbourhood XLSX file into Chrome or opening one from the web without downloading it first.

Microsoft Excel Open XML Spreadsheet

Developer           Microsoft

Popularity          3.9 (619 Votes)

Category             Spreadsheet Files

Format                Zip

Still Can’t Open the File?

common xlsx file errorThe most likely explanation behind why the file won’t open now, on the off chance that you’ve attempted every one of the recommendations above, is that you’re not so much managing an XLSX file.

This may occur in the event that you’ve just quickly looked at the file extension and are confusing it for an Excel file.

For instance, maybe your file truly finishes in .LSX, in which case it’s a Streaming Media Shortcut file and has nothing to do with Excel. Windows Media Player opens LSX file.

Likewise, it’d be anything but difficult to confound a SLX file for one that has the Excel XLSX postfix, yet SLX files are unrelated to Excel and are rather used by projects like Simulink and SpectraLayers.

In the event that you can’t open the file, re-read the extension and research it on the web.

It should be relatively simple to discover more about the file type you’re actually working with and how to open it. 

You can even check our menu above or to the right of this article to see if we have a page that may be able to help you.

How to Convert an XLSX File

If you have one of the applications we’ve just mentioned installed on your PC, it’s prescribed to use that same program to save whatever XLSX you’re working with to the different configuration you’re keen on.

This is normally done through the File > Save as menu option.

how to convert xlsx file

  • Open the file option
  • Click on save as
  • Select any one from these (CVS, XLS, TXT, XML)
  • Push the F12 key to save as window

Here and there the speediest answer for believer a XLSX file isn’t with an tool you have installed, yet rather by means of a free file change programming system or online administration like Zamzar or Convert Files.

Simply taking a gander at the capacities of those two administrations, you can change over whatever Excel file you need to a wide range of file types, as XLSX to CSV, XML, DOC, PDF, ODS, RTF, XLS, MDB, and even picture and web file formats like JPG, PNG, and HTML.

Programs that open XLSX files

File Viewer Plus

Microsoft Excel 2019

OxygenOffice Professional

Corel WordPerfect X9

Apache OpenOffice

SoftMaker Office



Open XLSX files for free with File Viewer Lite

File Viewer Lite is a free XLSX file opener that enables you to view Excel archives in their local organization without obtaining and install Microsoft Excel.

Notwithstanding Microsoft Excel files, File Viewer Lite can open more than 150 file types, including Microsoft Word archives, PDF files, pictures, video files, sound files, and then some.

You can likewise see unsupported proprietary report organizes in the program’s Text and Hex Views.

These perspectives show the substance of the report, which can give valuable data.

XLSX Files – Conclusion

We hope you’ve found this article about XLSX files informative and helpful. 

Here are some other files that you may find interesting to learn about:

How To Open a JSON File
What is a M4A File and How To Open One

What is an XLSX file and how do I Open?

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