Drop file here. 150 MB maximum file size.
Compressed bitmap using wave compression instead of DCT used by standard .JPEG images; supports 16-bit, alpha transparency and lossless compression.
A model file created by Microsoft Excel, a spreadsheet program; contains default settings and layout properties d' an activated macro-spreadsheet; used to create a new activated macro-file (.XLSM) using the Open XML format, which was introduced in Microsoft Office 2007.
Access powerful and secure free online J2K tools to convert, view, edit, merge, split, and compare J2K files β all without installing any software. Our tools support the .J2K (JPEG 2000 Image) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your J2K files directly from your device with ease.
Chose or drag & drop your J2K file, click Convert to XLTM, and download the XLTM file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert J2K to XLTM in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert J2K to 100s of file formats, without any limit, registration and downloading, 100% free and online J2K converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
About FileProInfo: FileProInfo is a trusted platform dedicated to file formats and software programs. We provide accurate technical details, easy-to-use navigation, and advanced search capabilities to help users explore, manage, and convert file types efficiently.
Listed file converters are from the wide range of online file converter.
These are the most polular file/document converters based on the user's review and usage on the FileProInfo.