HFF File Extension

What is HFF file?

HFF is a file extension commonly associated with L3DT Heightfield Data Format files. HFF files are supported by software applications available for devices running Windows. HFF file format, along with 622 other file formats, belongs to the 3D Image Files category. L3DT is by far the most used program for working with HFF files.

Programs which support HFF file extension

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

Updated: 02/02/2021

How to open file with HFF extension?

There can be multiple causes why you have problems with opening HFF files on given system. Fortunately, most common problems with HFF files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Get the L3DT

The main and most frequent cause precluding users form opening HFF files is that no program that can handle HFF files is installed on user’s system. To address this issue, go to the L3DT developer website, download the tool, and install it. It is that easy Above you will find a complete listing of programs that support HFF files, classified according to system platforms for which they are available. The safest method of downloading L3DT installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Check the version of L3DT and update if needed

You still cannot access HFF files although L3DT 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. This can be one of the causes why HFF files are not compatible with L3DT. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using L3DT.

Step 3. Set the default application to open HFF files to L3DT

If the issue has not been solved in the previous step, you should associate HFF files with latest version of L3DT you have installed on your device. 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 HFF file
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where L3DT is installed. Now all that is left is to confirm your choice by selecting Always use this app to open HFF files and clicking OK.

The procedure to change the default program in Mac OS

• By clicking right mouse button on the selected HFF file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• Select L3DT and click Change for all...
• A message window should appear informing that This change will be applied to all files with HFF extension. By clicking Continue you confirm your selection.

Step 4. Ensure that the HFF file is complete and free of errors

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

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

If the file is infected, the malware that resides in the HFF 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 HFF file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Verify that the HFF file’s structure is intact

If you obtained the problematic HFF 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 HFF 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.

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Check whether your system can handle L3DT

If the system is under havy load, it may not be able to handle the program that you use to open files with HFF extension. In this case close the other applications.

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 L3DT Heightfield Data Format files. It is possible that one of the available system or driver updates may solve the problems with HFF files affecting older versions of given software.

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