Extract text from E-Prime 2.0 packages (EPK2)
To convert EPK2 packages to another format, you need E-Prime 2.0 or other Data software.
To convert other file formats to the "Experiment Package File" file type, you need software like E-Prime 2.0 or a similar tool.
EPK2 files are proprietary E-Prime 2.0 Package Files developed by Psychology Software Tools. Researchers use them to bundle behavioral and psychological experiment files into a single, deployable container. These files contain experimental logic, timing constraints, and sometimes embedded media stimuli used during cognitive testing.
The primary disadvantage of the .EPK2 format is its closed, proprietary nature. It requires a costly, specialized license for E-Prime 2.0 to open and run. You cannot view these packages in standard web browsers, text editors, or free data analysis tools. If a colleague sends you an .EPK2 file and you do not have the software installed, you are completely locked out of the experiment data and structure.
Converting these files is highly requested but technically challenging. Standard online converters fail because the format is a closed binary structure designed specifically for the E-Prime runtime engine. If you need to share the data with non-researchers, the best approach is to open the file in the original software and export the raw trial data to CSV or TXT. Be aware that while this extracts the tabular data, it will lose the interactive experiment logic and millisecond-timing precision.
Because this file format is difficult to open or convert, often only the original software can properly read or export the data. If our analysis detects a supported underlying or embedded format, viewing or extracting partial content may still be possible.
Convert.Guru analyzes your EPK2 file, detects the exact format, and lets you read the text inside.
If you want to convert EPK2 file to , you can use E-Prime 2.0 or similar software from the "Behavioral Research Experiment Packaging" category. In the File menu, look for Save As… or Export….
To convert files to EPK2, try E-Prime 2.0 or another comparable tool in the "Behavioral Research Experiment Packaging" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our EPK2 converter.