The XMDX file extension is associated with SofTest answer data files. SofTest allows users to create assessments electronically. XMDX files store the answer data. You need SofTest installed to open XMDX files.
Double-clicking an XMDX file opens it in the associated program. If none is associated, select an app to open the XMDX file. Windows does not recognize the XMDX extension by default.
Update the application you use to open XMDX files. Only the latest version supports the current format. Check XMDX files for viruses. Scan with antivirus software like Norton.
440 file types get the XMDX extension, but most are incompatible. Use a different application per file type. Tools to work with XMDX files are XMDX file openers, converters, viewers and editors.
Markdown Editors
Text Editors