The pdfxml file extension is associated with Adobe Mars project exploring possible XML implementation to PDF file format. Mars project is still in development. Files with the pdfxml extension are found in Windows and Mac operating systems, originally developed for Adobe Mars application by Adobe Systems. PDFXML files can be handled by applications like Adobe Acrobat.
To open pdfxml files, download and install appropriate program like Adobe Acrobat or Adobe Mars. List of software that works with pdfxml provided below based on operating system. Only latest software version supports current pdfxml file format.
After installing necessary software, system should automatically associate pdfxml files with it. If file not opening, verify pdfxml file not infected with malware blocking access. If issue persists, update software opening pdfxml files to latest version.
Adobe Acrobat