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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

  How to add watermark to XLSX

  • Open this free online watermarking tool in your favourite browser.
  • Click inside the file drop area to upload a XLSX file or drag & drop a XLSX file.
  • Your XLSX file will be rendered for you to add watermarks instantly.
  • Add text and image watermarks and setup their properties.
  • Download the updated XLSX file with watermarks added.

Other Watermark App supported file formats

You can also add watermark to many other file formats. Please see the complete list below.

Viewer Annotation Conversion Comparison Signature Assembly Metadata Search Parser Watermark Editor Merger Redaction Classification Splitter Translation Unlock