What Is a DOP File?

How to Open, Edit, and Convert DOP Files

Screenshot of several DOP files used with DxO Optics Pro in Windows 10
DOP Files.

A file with the DOP file extension is most likely a plain text DxO Optics Pro Correction Settings file that holds image adjustment values for photos edited with DxO Optics Pro. It's named exactly the same as the image file but ends with the .DOP suffix, like myimage.cr2.dop.

Within a DOP file are many lines of text that refer to specific settings that could be applied to the image. Three examples include BlurIntensity, HazeRemovalActive, and ColorModeSaturation, each of which have their own value (like15, false, and 0) to describe to DxO Optics Pro how those effects should be applied to the associated image when viewed within its software.

Some DOP files may instead be Schneider Electric/Telemecanique HMI project files, XML-based Directory Opus Application files, Digital Orchestrator files used with Voyetra Turtle Beach's now-discontinued Digital Orchestrator audio software, or they might be used to hold custom PDF export settings.

Not: DOP is also an acronym for some technology terms that don't apply to a file format, like data/date object processed, directory operational protocol, and desktop operating procedure.

How to Open a DOP File

DxO Optics Pro Correction Settings files are used by DxO Optics Pro to store information about changes made to a RAW file with that program, but they aren't intended to be opened directly.

In other words, when you open a RAW image file with DxO Optics Pro, make changes to it, and then export the image as JPG (or whatever format you choose), a DOP file is created along with the conversion that stores the changes you made.

So long as the DOP file stays in the same folder as the RAW image, your settings will be retained the next time you open the RAW file in DxO Optics Pro.

You can, however, open the DxO Optics Pro Correction Settings file with any text editor (like Notepad++) if you're interested in reading the text version of how the program identifies the corrections and adjustments.

If your specific DOP file is a Schneider Electric/Telemecanique HMI (human machine interface) project file, you should be able to open it with Schneider Electric's Vijeo Designer or Delta Electronics' Screen Editor.

Note: There aren't current versions of Vijeo Designer or Screen Editor available through those links. The software might be discontinued but it's possible you can request a copy from those companies if you don't already have a copy on your computer. There is an old demo version of Vijeo Designer available here but it only works with Windows XP and older.

The Directory Opus program, a Windows Explorer alternative, uses DOP files too, but they're just stored in the application's installation directory and aren't meant to be opened or used manually. However, since they are just plain text files, you can open one with your favorite text editor for editing or for reading the code.

DOP files that are PDF export settings may be used with other programs but the only ones I know of are PTC's Creo Parametric and Creo Elements.

The last version of the Digital Orchestrator program was released in 1997 and I can't find an official download/purchase link, so it's likely that your DOP file is not in this format.

If you're sure it is, you must have that program in order to open it. You can read a little about it on the Digital Orchestrator Pro page at the Videogame Music Preservation Foundation.

Other DOP files may have nothing to do with any of these applications. If you're not sure what format it's in, I suggest opening the DOP file with Notepad++ to view it as a text document, which can sometimes help you find out what type of file it is (document, image, video, etc.) or what program was used to create it.

How to Convert a DOP File

Most file types can be converted using a free file converter, but there probably aren't many that support any of these DOP formats, most likely because there's little need to have any of these files exist in a different format.

One thing you can try is to open the DOP file in the program that it belongs to, and then use the File > Save as or Export menu (if there is one) to convert the DOP file to a new format.

Still Can't Open Your File?

Have you tried the programs above but still can't get it to work with anything? You might simply be dealing with a file that doesn't belong to any of the formats mentioned above. That usually happens when you misread the file extension.

For example, a DOC, DOT (Word Document Template), DO (Java Servlet), and DHP file all share some of the same letters as DOP files but none of them can open with the DOP openers from above. Each file requires their own specific program in which they can be opened and converted.

If you can't get your file to open with the DOP editors or viewers above, just double-check the file extension. If it turns out that you don't have a DOP file, research the file extension that you do have so that you can find the appropriate program(s) that it works with.