QHC file icon

QHC File Extension

Qt Help Collection

What is QHC file?

QHC filename suffix is mostly used for Qt Help Collection files. Qt Help Collection format was developed by Digia Oyj. QHC files are supported by software applications available for devices running Windows. QHC file belongs to the Settings Files category just like 1305 other filename extensions listed in our database. The most popular software that supports QHC files is Qt SDK. Software named Qt SDK was created by Digia Oyj. In order to find more detailed information on the software and QHC files, check the developer’s official website.

Programs which support QHC file extension

The following listing features QHC-compatible programs. Files with QHC extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support QHC file

Windows Windows

How to open file with QHC extension?

There can be multiple causes why you have problems with opening QHC files on given system. On the bright side, the most encountered issues pertaining to Qt Help Collection 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. Download and install Qt SDK

Install software to open QHC file The main and most frequent cause precluding users form opening QHC files is that no program that can handle QHC files is installed on user’s system. The solution is straightforward, just download and install Qt SDK. Above you will find a complete listing of programs that support QHC files, classified according to system platforms for which they are available. If you want to download Qt SDK installer in the most secured manner, we suggest you visit Digia Oyj website and download from their official repositories.

Step 2. Check the version of Qt SDK and update if needed

Update software that support file extension QHCIf you already have Qt SDK installed on your systems and QHC files are still not opened properly, check if you have the latest version of the software. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of Qt SDK installed, it may not support QHC format. The most recent version of Qt SDK is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Associate Qt Help Collection files with Qt SDK

After installing Qt SDK (the most recent version) make sure that it is set as the default application to open QHC 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 QHC file on Windows

Selecting the first-choice application in Windows

  • Clicking the QHC 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 Qt SDK is installed. Now all that is left is to confirm your choice by selecting Always use this app to open QHC files and clicking OK.
Associate software with QHC file on Mac

Selecting the first-choice application in Mac OS

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

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

Check QHC file for viruses
1. Check the QHC file for viruses or malware

Should it happed that the QHC is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the QHC file is indeed infected follow the instructions below.

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

Did you receive the QHC file in question from a different person? Ask him/her to send it one more time. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. When downloading the file with QHC extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

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

Some files require elevated access rights to open them. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open Qt SDK

The operating systems may note enough free resources to run the application that support QHC files. Close all running programs and try opening the QHC file.

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

Latest versions of programs and drivers may help you solve problems with Qt Help Collection files and ensure security of your device and operating system. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle QHC files.

Do you want to help?

If you have additional information about the QHC 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 QHC file.

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