3DR files are so-called result files, ie result files of the graphics benchmark program 3D-Mark. The 3D-Mark from Futuremark belongs to the so-called synthetic test programs for the graphics performance and traversed during the test different scenes. At the end the result, which consists of different individual values and a calculated total value (the 3dMarkScore), is displayed. Depending on the equipment version, these values can be saved as a 3DR file.
Until 3D Mark 06, the results could also be saved locally in the free basic version. To load and view the results, all you need to do is right-click on the Futuremark logo top right to select 'submit saved result'. Then the data will be displayed in a browser window (you have to be online). Since the Vantageversion is in the basic version only an online display possible. Loading and saving the result files is now reserved for the commercial version.
If you do not have an Internet connection, you can simply rename the 3DR file to a zip file and open it with a packaging program. Among other things, it contains a file result.Xml that contains all the results. This file can be opened with any text editor or xml editor.
A lighter and easier method is the Mark Reader. This free program is capable of reading in 3DR files and clearly displaying all results. Probably only until 3D Mark 06.
It should be noted, on the one hand, that the 3DR files are not compatible with each other and apart from the Mark Reader, only the respective 3D mark can read the file. On the other hand, it is important to know that the results are only comparable within a vintage version.