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J2K to XLSX converter

Convert J2K to XLSX online from any device with a free converter.

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We have already processed 5,838,936 files with total size of 9,548,999 Mbytes

About Image converter

Convert J2K to XLSX files online with our free image converter. Whether you're on Windows 10, Mac, Android or iPhone, converting J2K files is quick and easy.

This app supports raster image formats such as JPEG, PNG, and GIF, which are perfect for photos and web graphics. Vector formats such as SVG, AI, CDR are resolution-independent, perfect for logos and illustrations. Top image editing tools include Adobe Photoshop, CorelDRAW, and Illustrator.

Change J2K to XLSX without losing quality — drop your file into the upload form, pick XLSX as the output, and hit Convert. Download your file right after conversion. No email or registration needed.

Check our video
J2K

JPEG 2000 Image

JPEG 2000 Code Stream (J2K) is a highly efficient image compression format designed for high-quality imaging, offering superior compression ratios and lossless/lossy compression options compared to traditional JPEG. It is widely used in medical imaging, digital cinema, and archival applications, with support in tools like Kakadu, OpenJPEG, and Adobe Photoshop. The format employs wavelet-based compression, supports multiple color spaces, and includes advanced features like region-of-interest coding, progressive decoding, and metadata embedding for enhanced flexibility and scalability.

XLSX

Microsoft Excel Open XML Spreadsheet

XLSX is a widely used file format for spreadsheets, developed by Microsoft as part of the Office Open XML standard, succeeding the older XLS format. It is supported by Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications, ensuring cross-platform compatibility. The format is based on XML and stored in a compressed ZIP container, enabling features like advanced formulas, charts, conditional formatting, and support for large datasets while maintaining smaller file sizes compared to its predecessor.

Add the conversion API to your app

  • Convert over 200 file formats — including PDF, Word, Excel, HTML, images, and many more
  • Load files from disk, URLs, FTP servers, or cloud storage (such as Amazon S3 or Azure)
  • Customize output settings — rotate and reorder pages, add comments, or apply watermarks
How it works

How to convert J2K to XLSX

Step 1
Click inside the file drop area to upload J2K file or drag & drop J2K file.
Step 2
Click on Convert button. Your J2K files will be uploaded and converted to XLSX result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the XLSX file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert J2K into many other file formats. Please see the complete list below.

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