When moving your eye-tracking data to another computer for analysis, it is crucial to move all the necessary files, not just the EDF files.
EDF files do not contain your background images, videos, or Interest Area sets; they only contain pointers to these supplementary files. If you move only the EDF file, these links will break, and Data Viewer will not display your trials correctly.
To move the data without breaking the links to the dependency files you have two available methods:
Long-Term Backup and Data Integrity
For long-term storage, always back up the entire original project directory.
Note: Data Viewer works with copies of your data. The original imported EDF files are immutable (read-only). If any issues arise during analysis, you can always restore the data to its original state by re-importing the files from your backup.
EDF files do not contain your background images, videos, or Interest Area sets; they only contain pointers to these supplementary files. If you move only the EDF file, these links will break, and Data Viewer will not display your trials correctly.
To move the data without breaking the links to the dependency files you have two available methods:
- Method 1 (Recommended): Package a Viewing Session (.dvz)
The safest way to move your data is to package your session into a single, portable file.- Import all your EDF files into a single Data Viewer session.
- From the menu, go to File > Package....
- Import all your EDF files into a single Data Viewer session.
- Method 2 (Alternative): Copy the Entire Project Directory
Alternatively, you can copy the entire original project directory (including all subfolders). This ensures that all supplementary files and the relative paths to them are preserved.
Long-Term Backup and Data Integrity
For long-term storage, always back up the entire original project directory.
Note: Data Viewer works with copies of your data. The original imported EDF files are immutable (read-only). If any issues arise during analysis, you can always restore the data to its original state by re-importing the files from your backup.

