Free Online XLSX Document Editor

View, Edit, Convert & Download your Word, PDF, PowerPoint, Excel and more types of documents, 100% free online!


XLSXMicrosoft Excel Open XML Spreadsheet

XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.

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 How to view, edit, download a XLSX document using GroupDocs Editor App

  • Click inside the file drop area to upload a XLSX file or drag & drop a XLSX file.
  • File will be automatically rendered for you to view/edit/download instantly.
  • View & edit document.
  • Download the original XLSX file.
  • Download the edited XLSX file.
  • Download the edited XLSX file as PDF.
  • View/edit document HTML source.

Quick and Easy Editor

Upload or create new document and you will be redirected to the HTML Editor app with great user experience and many more features.

Edit from Anywhere

It works from all platforms including Windows, Mac, Android and iOS. All files are processed on our servers. No plugin or software installation required for you.

Editor Quality

Powered by GroupDocs.Editor. All files are processed using GroupDocs APIs.

Other Editor file formats

You can also edit many other file formats. Please see the complete list below.