Last Update: 4/12/2018
Origin 2018 introduced a new Unicode-compliant (UTF-8) project file type -- the OPJU file. These files cannot be opened in earlier versions of Origin (though, it should be noted that Origin 2018 and newer versions retain the ability to save files in the older OPJ format).
If you cannot open an OPJU file with your Origin software, do this:
For more information on the Origin Viewer, visit this page on the OriginLab website.
Keywords:backward-compatible, file type, project file