Annotate Excel Online

Annotate, Comment and Tag your XLS, XLSX, XLSM, XLSB, CSV, ODS files for Efficient Collaboration Online for Free

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Annotation is a lightweight and powerful software which allows everyone to seamlessly modify documents with the capability to annotate them. Annotate your document completely free on any OS and platform using just your browser.

With Annotation software powered by GroupDocs you are allowed to annotate documents, leave comments, draw figures, calculate distances, highlight and mark up documents. With our annotator you can do it on PDFs, text documents, diagrams, excel sheets, presentations, images and even CAD files. The most popular annotation examples are highlighting, underlying, striking out text, adding watermarks and polylines.

How to annotate Excel documents online

  • Click inside the file drop area to upload a Excel file or drag & drop a Excel 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 Excel file.


  • ❓ How can I annotate Excel document?
    First, you need to upload a file: drag & drop your Excel 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 annotating Excel document?
    The annotation app works fast. Typically it takes a couple of seconds to open a Excel document and prepare it for adding annotations.
  • 🛡️ Is it safe to annotate Excel files using this Annotator?
    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 Excel on Linux, Mac OS, or Android?
    Yes, you can use our annotator on any operating system that has a web browser. Our Excel Annotation App works online and does not require any software installation.
  • 🌐 What browser should I use to annotate Excel documents?
    You can use any modern browser to annotate Excel documents, for example, Google Chrome, Microsoft Edge, Firefox, Opera, or Safari.
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