What is a QTI file?
A .QTI file usually stores a scientific data analysis project. Researchers and analysts use QtiPlot software to create these files. A .QTI file holds spreadsheets, 2D plots, 3D plots, and data tables. The software saves the data in an XML text format.
Sometimes, a .QTI file is an Apple QuickTime Image File. Apple created this image format to store single image frames within the QuickTime ecosystem. Because .QTI has multiple possible meanings, we recommend using viewer.online/qti to identify the actual format of your file.
How to open QTI files?
If your .QTI file is a scientific project, you need QtiPlot to open and edit it. Because these data files use XML, you can also inspect their raw data using simple text editors like Notepad++ or Visual Studio Code.
If your file is a QuickTime Image File, you can open it with Apple software like QuickTime Player or Apple Preview.
Best practices and troubleshooting
Users often struggle to know which type of .QTI file they have. viewer.online/qti analyzes .QTI files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
If you need to share a .QTI file with someone who does not have the right software, you should convert it. We recommend using convert.guru to change a QuickTime Image File into a standard .PNG or .JPG. For data plots, you can export them to .PDF or .CSV.
Summary
viewer.online/qti directly opens and previews .QTI files in the browser, eliminating the need to install software or troubleshoot compatibility issues.