Annotate XLSX Online

Annotate, Comment and Tag your XLSX file for Efficient Collaboration Online for Free

XLSX Microsoft 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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Free Document Conversion, Viewer, Merger app for Windows

Free Document Conversion, Viewer, Merger app for Windows

  • Easily convert, view or merge unlimited files on your own Windows PC.
  • Process Word, Excel, PowerPoint, PDF and more than 100 file formats.
  • No limit on file size.
  • Batch conversion of multiple files.
  • One app with rich features like Conversion, Viewer, Merger, Parser, Comparison, Signature.
  • Regular FREE updates with new features coming every month.
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Discover GroupDocs.Annotation free online app!

How to annotate XLSX documents online

How to annotate XLSX documents online

  • 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 instantly.
  • Scroll down to navigate between pages.
  • Add annotations to the document.
  • Download the annotated version of your XLSX file.

FAQ

  • ❓ How can I annotate XLSX document?
    First, you need to upload a file: drag & drop your XLSX file or click inside the white area to choose a file. Then you will be redirected to the annotation application.
  • ⏱️ How fast can I start adding annotations to XLSX document?
    The annotation app works fast. Typically it takes a couple of seconds to open a XLSX document and prepare it for adding annotations.
  • 🛡️ Is it safe to annotate XLSX files using free GroupDocs Annotation App?
    Of course! The preview files will be available instantly after the file uploaded. We will delete the uploaded file after 24 hours.
  • 💻 Can I annotate documents XLSX on Linux, Mac OS, or Android?
    Yes, you can use the free GroupDocs Annotation on any operating system that has a web browser. Our XLSX Annotation App works online and does not require any software installation.
  • 🌐 What browser should I use to annotate XLSX documents?
    You can use any modern browser to annotate XLSX documents, for example, Google Chrome, Microsoft Edge, Firefox, Opera, or Safari.

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 GroupDocs.Annotation for .NET API

Powerful document annotating .NET library & API.
Build your own document annotation management applications using our comprehensive set of APIs that allow you to annotate your documents!

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Java version of GroupDocs.Annotation library & API.
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Easy to use cross-platform Cloud solution.
Our REST API helps you to develop cross-platform document annotator. Build tools for annotating all common business documents and image file formats.

Open-Source UI/UX Solutions

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Integrate GroupDocs.Annotation functionality in your apps using our out-of-the-box open-source front-end solutions based on Angular and GroupDocs.Annotation for .NET/Java.
UI/UX solutions can be run as standalone application or can be integrated in any .NET/Java application, download and build your annotation solution within few clicks!

 GroupDocs.Total for .NET and Java

GroupDocs.Total is an open-source UI/UX solution where all GroupDocs products are working together as one.
GroupDocs.Total provides multiple high quality features against over 120 document formats, such as conversion, signature, parser and much more!