Tips to open QHP file

Can't open the QHP file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open QHP files as well as a list of programs that support QHP files.

QHP file extension

File Name Qt Help Project
File Developer Digia Oyj
File Category Document Files

The QHP file is supported on 1 operating systems. Depending on your operating system, you may need different software to handle the QHP files. Below is a summary of the number of programs that support and open the QHP file on each system platform.

Operating systems
  • 1
  • 0
  • 0
  • 0
  • 0
  • 0

What is QHP file?

The file in the QHP format belongs to the Document Files category. The author of this format is Digia Oyj. Document Files consists of 574 similar files. Qt Help Project is most often found on 1 operating systems. Although it can be found with greater or lesser success on any operating system, it will only be useful on Windows. The main program that supports this format is Qt SDK. This was created by Digia Oyj.

How to open QHP file?

The most common problem when using Qt Help Project is that a specific QHP is not associated with the program. Thus, when you open QHP, the program selection wizard or some other program starts. This problem can be easily remedied.

The first thing you should do is just "doubleclick" on the QHP file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Qt SDK

In this case, you should first verify that the Qt SDK application is installed on the computer. This can be achieved by typing Qt SDK into the operating system search engine. In the absence of an appropriate program, its installation in the vast majority of cases will fix the problem. Below is a list of programs that support the file QHP.

Programs to open QHP file

Remember to download programs supporting QHP files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Qt SDK with QHP files

However, it may happen that the application itself does not cause the QHP file to open in the Qt SDK application, but you can set it manually. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. The window will show, among other things, the type of the file and the information by which the program is used to launch the file. Using the "Change" button we can select the desired program. If there is no software on the list, simply select "Browse" and manually select the directory where the application is installed. Checking the "Always use the selected program ..." box will permanently associate the QHP file with the Qt SDK program.

Step 3. Update Qt SDK to the latest version

If, however, after binding Qt SDK with Qt Help Project there were still problems, you should update the program to the latest version. This can be done using the application (if it provides such options) or from the Digia Oyj website and install the latest version.

Step 4. Check for the following problems with the QHP file

If the above steps do not help, you can assume that the file itself is not correct. File problems can be divided into the following:

Very often, the file may be size 0 or incomplete. This suggests truncating the QHP file contents when downloading or copying. The only repair option is to download the file again.
The most common cause here is computer viruses. A quick virus scan using an up-to-date antivirus program should clear up any doubts. If this is not possible, you can use the online scanner. However, it is important to scan the entire system, not only the file QHP or the program directory. As a result of the scan, sometimes it is not possible to recover QHP files, which are deleted if there is a backup of this file, then after restoring it, it must also be scanned.
Older version of QHP file may not always be supported by the latest software version. Help should be sought from the software developer, as they usually recommend using free file converters or installing an older version of the program.
The file may be corrupted in a number of ways. The repair method must be adapted to the type of file and damage. Some programs offer the ability to automatically repair QHP file corruption. You can restore the file from a backup or use Digia Oyj help.
The program can also signal the fact of encryption. The encrypted QHP files cannot be played on other computers than the one on which they were encrypted, they must be decrypted before using on another device.
Some of the system directories are excluded from modification. While there is usually no problem reading such a file, it may not be possible to save it. Copying the QHP file to another location will fix the problem.
This problem only occurs with more complex files. You may find that another program you are using is preventing you from working with the file. Closing other programs should help. If the error persists after closing other programs, wait for a while. Some anti-virus or backup software may occupy the QHP file for a certain period of time. If this does not work either, restart the device.