Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.PSYEXP
File Type
PsychoPy Experiment File
Category
Data
Best first step
Use compatible software
Quick Summary
A practical overview of the .psyexp file format
The .psyexp file extension is primarily associated with PsychoPy, an open-source Python library and application used for creating and running psychology experiments, particularly those involving precise timing and stimulus presentation. A .psyexp file is essentially a serialized representation of a…
File extension
.PSYEXP
File type
PsychoPy Experiment File
Category
Data
Recommended action
Open with a trusted compatible app
How to open a .psyexp file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .psyexp.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .psyexp file?
File extension details and usage information
The .psyexp file extension is primarily associated with PsychoPy, an open-source Python library and application used for creating and running psychology experiments, particularly those involving precise timing and stimulus presentation. A .psyexp file is essentially a serialized representation of a PsychoPy experiment structure. It contains all the necessary information to define the experiment's flow, including the sequence of trials, the stimuli used (such as text, images, sounds, or movies), timing parameters, participant data collection settings, and any custom code or routines written by the researcher. These files are typically created and edited using the PsychoPy Builder interface, which provides a graphical way to design experiments without extensive coding. When an experiment needs to be run, the .psyexp file is loaded by the PsychoPy application or the underlying Python environment, which then interprets the structure to present the stimuli to participants and record their responses. Because it stores the entire experimental design, it is crucial for reproducibility in scientific research, allowing other researchers to understand exactly how the study was conducted.
Software Compatibility
Programs that may open or work with .psyexp files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .psyexp files be converted?
Options for saving or exporting this file to another format
In many cases, a .psyexp file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .psyexp file.
Why can't I open a .psyexp file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .psyexp format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .psyexp files
To open a .psyexp file, use software that supports this file format.
- PsychoPy
- PsychoPy (for running compiled experiments, though authoring is desktop-focused)
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .psyexp file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.