~DF File Extension

What is ~DF file?

~DF filename suffix is mostly used for Delphi Form Backup files. Delphi Form Backup specification was created by Embarcadero Technologies, Inc.. Files with ~DF extension may be used by programs distributed for Windows platform. Files with ~DF extension are categorized as Developer Files files. The Developer Files subset comprises 1205 various file formats. Users are advised to use C++ Builder software for managing ~DF files, although 1 other programs can also handle this type of file. Software named C++ Builder was created by Embarcadero Technologies, Inc.. In order to find more detailed information on the software and ~DF files, check the developer’s official website.

Programs which support ~DF file extension

The following listing features ~DF-compatible programs. ~DF files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with ~DF extension?

There can be multiple causes why you have problems with opening ~DF files on given system. On the bright side, the most encountered issues pertaining to Delphi Form Backup files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Install C++ Builder software

The most common reason for such problems is the lack of proper applications that supports ~DF files installed on the system. This issue can be addressed by downloading and installing C++ Builder or different compatible program, such as Delphi. Above you will find a complete listing of programs that support ~DF files, classified according to system platforms for which they are available. The safest method of downloading C++ Builder installed is by going to developer’s website (Embarcadero Technologies, Inc.) and downloading the software using provided links.

Step 2. Update C++ Builder to the latest version

If the problems with opening ~DF files still occur even after installing C++ Builder, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of C++ Builder is available. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. This can be one of the causes why ~DF files are not compatible with C++ Builder. The most recent version of C++ Builder is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Set the default application to open ~DF files to C++ Builder

If you have the latest version of C++ Builder installed and the problem persists, select it as the default program to be used to manage ~DF on your device. The method is quite simple and varies little across operating systems.

The procedure to change the default program in Windows

• Clicking the ~DF with right mouse button will bring a menu from which you should select the Open with option
• Click Choose another app and then select More apps option
• The last step is to select Look for another app on this PC option supply the directory path to the folder where C++ Builder is installed. Now all that is left is to confirm your choice by selecting Always use this app to open ~DF files and clicking OK.

The procedure to change the default program in Mac OS

• From the drop-down menu, accessed by clicking the file with ~DF extension, select Information
• Find the Open with option – click the title if its hidden
• Select C++ Builder and click Change for all...
• Finally, a This change will be applied to all files with ~DF extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the ~DF for errors

Should the problem still occur after following steps 1-3, check if the ~DF file is valid. It is probable that the file is corrupted and thus cannot be accessed.

1. Verify that the ~DF in question is not infected with a computer virus

If the file is infected, the malware that resides in the ~DF 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. ~DF file is infected with malware? Follow the steps suggested by your antivirus software.

2. Check whether the file is corrupted or damaged

If you obtained the problematic ~DF file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with ~DF extension was interrupted and the file data is defective. Download the file again from the same source.

3. Check if the user that you are logged as has administrative privileges.

Some files require elevated access rights to open them. Switch to an account that has required privileges and try opening the Delphi Form Backup file again.

4. Check whether your system can handle C++ Builder

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

5. Ensure that you have the latest drivers and system updates and patches installed

Latest versions of programs and drivers may help you solve problems with Delphi Form Backup files and ensure security of your device and operating system. It is possible that one of the available system or driver updates may solve the problems with ~DF files affecting older versions of given software.

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