DDL File Extension

DDL file icon
Data Definition Language Format

What is DDL file?

DDL filename suffix is mostly used for Data Definition Language Format files. DDL files are supported by software applications available for devices running Linux, Mac OS, Windows. DDL file belongs to the Database Files category just like 348 other filename extensions listed in our database. The most popular program for handling DDL files is EclipseLink, but users can choose among 5 different programs that support this file format.

Programs which support DDL file extension

The following list contains programs grouped by 3 operating systems that support DDL files. Files with DDL suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

Programs that support DDL file

How to open file with DDL extension?

Problems with accessing DDL may be due to various reasons. On the bright side, the most encountered issues pertaining to Data Definition Language Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Install EclipseLink software

The most common reason for such problems is the lack of proper applications that supports DDL files installed on the system. The most obvious solution is to download and install EclipseLink or one to the listed programs: Text editor. Above you will find a complete listing of programs that support DDL files, classified according to system platforms for which they are available. The safest method of downloading EclipseLink installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Update EclipseLink to the latest version

You still cannot access DDL files although EclipseLink is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that EclipseLink cannot handle files with DDL may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using EclipseLink.

Step 3. Associate Data Definition Language Format files with EclipseLink

After installing EclipseLink (the most recent version) make sure that it is set as the default application to open DDL files. The next step should pose no problems. The procedure is straightforward and largely system-independent

The procedure to change the default program in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the DDL file
  • Select Choose another app → More apps
  • Finally select Look for another app on this PC, point to the folder where EclipseLink is installed, check the Always use this app to open DDL files box and conform your selection by clicking OK button

The procedure to change the default program in Mac OS

  • By clicking right mouse button on the selected DDL file open the file menu and choose Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • If you followed the previous steps a message should appear: This change will be applied to all files with DDL extension. Next, click the Continue button to finalize the process.

Step 4. Verify that the DDL is not faulty

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper DDL file. It is probable that the file is corrupted and thus cannot be accessed.

1. The DDL may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the DDL is infected with a virus, this may be that cause that prevents you from accessing it. Scan the DDL file as well as your computer for malware or viruses. If the scanner detected that the DDL file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Ensure the file with DDL extension is complete and error-free

Did you receive the DDL file in question from a different person? Ask him/her to send it one more time. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. When downloading the file with DDL extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Data Definition Language Format file again.

4. Check whether your system can handle EclipseLink

If the systems has insufficient resources to open DDL files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Data Definition Language Format file. It may be the case that the DDL files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the DDL file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on DDL file.

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