QSS File Extension

What is QSS file?

QSS is a file extension commonly associated with Qt Style Sheet files. Qt Style Sheet specification was created by Nokia. Files with QSS extension may be used by programs distributed for Linux, Mac OS, Windows platform. QSS file format, along with 1305 other file formats, belongs to the Settings Files category. The most popular program for handling QSS files is Nokia Qt Creator, but users can choose among 2 different programs that support this file format.

Programs which support QSS file extension

The list that follows enumerates programs compatible with QSS files, divided into 3 categories based on operating system on which they are available. Files with QSS suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with QSS extension?

There can be multiple causes why you have problems with opening QSS files on given system. Fortunately, most common problems with QSS files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. We have prepared a listing of which will help you resolve your problems with QSS files.

Step 1. Get the Nokia Qt Creator

The most common reason for such problems is the lack of proper applications that supports QSS files installed on the system. To address this issue, go to the Nokia Qt Creator developer website, download the tool, and install it. It is that easy Above you will find a complete listing of programs that support QSS files, classified according to system platforms for which they are available. One of the most risk-free method of downloading software is using links provided by official distributors. Visit Nokia Qt Creator website and download the installer.

Step 2. Verify the you have the latest version of Nokia Qt Creator

If the problems with opening QSS files still occur even after installing Nokia Qt Creator, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Nokia Qt Creator is available. 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 Nokia Qt Creator installed, it may not support QSS format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Nokia Qt Creator.

Step 3. Assign Nokia Qt Creator to QSS files

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

Change the default application in Windows

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

Change the default application in Mac OS

• Right-click the QSS file and select Information
• Find the Open with option – click the title if its hidden
• Select Nokia Qt Creator and click Change for all...
• A message window should appear informing that This change will be applied to all files with QSS extension. By clicking Continue you confirm your selection.

Step 4. Check the QSS for errors

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 QSS file. Being unable to access the file can be related to various issues.

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

Should it happed that the QSS 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 scanner detected that the QSS file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Check whether the file is corrupted or damaged

If the QSS file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the QSS file has been downloaded from the internet only partially, try to redownload it.

3. Ensure that you have appropriate access rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Switch to an account that has required privileges and try opening the Qt Style Sheet file again.

4. Make sure that the system has sufficient resources to run Nokia Qt Creator

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

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 Style Sheet 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 QSS files.

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