What is a QSS file?
Most often, a .QSS file is a Qt Style Sheet. Created by the Qt Group, these files use a syntax very similar to .CSS. Developers use them to customize the visual appearance of software interfaces built with the Qt framework. Because they are plain text, they are easy to read and edit.
Other QSS Formats
A .QSS file can also be a qualitative data analysis project for NVivo, a QueueSlideshow file used in QLab, a Skype data cache file, or an Android slideshow project. Because the .QSS extension has multiple possible meanings, we recommend using viewer.online/qss to identify the actual format of your file.
How to open QSS files?
If your file is a Qt Style Sheet, you can open it with a plain text editor like Notepad++, Visual Studio Code, or the official Qt Creator. If it is a QLab slideshow, you need QLab for macOS. If it is an NVivo project, you need the QSR NVivo software.
Converting QSS files
If you need to change the format of a Qt Style Sheet, you can easily rename the file extension. You can also use convert.guru to convert .QSS files to sensible target formats like .CSS or .TXT.
Inspect files with viewer.online
viewer.online/qss can analyze .QSS files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
viewer.online/qss is a powerful tool for identifying, inspecting, and understanding .QSS files without installing software or dealing with compatibility problems.