D file icon

D File Extension

D Source Code Format

What is D file?

D is a file extension commonly associated with D Source Code Format files. Files with D extension may be used by programs distributed for Linux, Mac OS, Windows platform. D file format, along with 1205 other file formats, belongs to the Developer Files category. Users are advised to use Code::Blocks software for managing D files, although 7 other programs can also handle this type of file.

Programs which support D file extension

Below you will find an index of software programs that can be used to open D files divided into 3 categories according to system platform supported. D files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support D file

How to open file with D extension?

There can be multiple causes why you have problems with opening D files on given system. On the bright side, the most encountered issues pertaining to D Source Code 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 Code::Blocks software

Install software to open D file Problems with opening and working with D files are most probably having to do with no proper software compatible with D files being present on your machine. This issue can be addressed by downloading and installing Code::Blocks or different compatible program, such as TextMate, GDC, D compiler. Above you will find a complete listing of programs that support D files, classified according to system platforms for which they are available. The safest method of downloading Code::Blocks installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Update Code::Blocks to the latest version

Update software that support file extension DIf the problems with opening D files still occur even after installing Code::Blocks, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Code::Blocks is available. Software developers may implement support for more modern file formats in updated versions of their products. The reason that Code::Blocks cannot handle files with D may be that the software is outdated. The latest version of Code::Blocks should support all file formats that where compatible with older versions of the software.

Step 3. Set the default application to open D files to Code::Blocks

After installing Code::Blocks (the most recent version) make sure that it is set as the default application to open D files. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Associate software with D file on Windows

Selecting the first-choice application in Windows

  • Choose the Open with entry from the file menu accessed by right-mouse clicking on the D file
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • Finally select Look for another app on this PC, point to the folder where Code::Blocks is installed, check the Always use this app to open D files box and conform your selection by clicking OK button
Associate software with D file on Mac

Selecting the first-choice application in Mac OS

  • From the drop-down menu, accessed by clicking the file with D extension, select Information
  • Find the Open with option – click the title if its hidden
  • Select the appropriate software and save your settings by clicking Change all
  • A message window should appear informing that This change will be applied to all files with D extension. By clicking Continue you confirm your selection.

Step 4. Verify that the D 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 D file. It is probable that the file is corrupted and thus cannot be accessed.

Check D file for viruses
1. The D may be infected with malware – make sure to scan it with an antivirus tool.

If the file is infected, the malware that resides in the D file hinders attempts to open it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the D file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Check whether the file is corrupted or damaged

Did you receive the D file in question from a different person? Ask him/her to send it one more time. During the copy process of the file errors may occurred rendering the file incomplete or corrupted. This could be the source of encountered problems with the file. It could happen the the download process of file with D extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Switch to an account that has required privileges and try opening the D Source Code Format file again.

4. Verify that your device fulfills the requirements to be able to open Code::Blocks

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

5. Verify that your operating system and drivers are up to date

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with D Source Code Format files. It may be the case that the D files work properly with updated software that addresses some system bugs.

Do you want to help?

If you have additional information about the D 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 D file.

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