LDD file: How can I open a .LDD file?
The table below provides useful information about the .ldd file extension. It answers questions such as:
- What is the .ldd file?
- What program do I need to open a .ldd file?
- How can the .ldd file be opened, edited or printed?
- How can I convert .ldd files to another format?
We hope you find this page helpful and a valuable resource.
✅ Laser Dispatch Data File

The LDD file is a Laser Dispatch Data File.
✅ LEGO Digital Designer Data

The LDD file is a LEGO Digital Designer Data. LEGO Digital Designer is a 3D modeling tool that enables you to design and render your own Lego creations.
✅ Visual Studio Logical Datacenter Diagram Data

The LDD file is a Visual Studio Logical Datacenter Diagram Data. Microsoft Visual Studio is a Integrated Development Environment (IDE) developed by Microsoft to develop GUI (Graphical User Interface), console, Web applications, web apps, mobile apps, cloud, and web services, etc.
⚠ Be careful with .ldd files.
It's important to know that the .ldd file extension can be used by various programs, not just the ones you expect. This includes potentially harmful software or malware that might create .ldd files. Be cautious when dealing with .ldd files from unknown sources.
🚫 The .ldd file extension is often given incorrectly!
According to the searches on our site, these misspellings were the most common in the past year:
Is it possible that the filename extension is misspelled?
We found the following similar file extensions in our database:
🔴 Can't open a .ldd file?
When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:
Select an app to open this .ldd file
It means that the operating system does not have a default app associated with the .ldd file type. To resolve this issue and open the file, you can take the following steps:
- Right-click on the .ldd file. A context menu will appear.
- From the context menu, select Open with. Windows will display a list of recommended apps.
- If the desired app is listed, select it from the provided options.
- If you cannot find the appropriate app, you may need to install software that supports the specific file type.
If you don't know how to change the default app for the .ldd file, check the FAQ.
🔴 Can I change the extension of files?
Changing the filename extension of a file is not a good idea. The extension of a file serves as a hint to the operating system and various software programs about the type of data contained within the file. When you alter a file's extension, you essentially modify how software applications interpret and handle that file. Every file has a specific format, also known as its file type or file format. The problem is, changing the file extension does not change the file format.
If you have helpful information about the .ldd file extension, write to us.