Hi Sanghee,
You are supposed to either visit the PHP script in your browser (at https://mondo1.dreamhosters.com/script.php) and enter the key corresponding to a participant’s eye-tracking data that is reported in the results file (eg. something like httpsfarmpcibexnetrgpKGCm/840b47d0-c7e2-5d6a-bcdb-e0084731f25f) in the input box to the right of “Experiment’s URL:”, or pass that key after ?experiment= in https://mondo1.dreamhosters.com/script.php?experiment=httpsfarmpcibexnetrgpKGCm/840b47d0-c7e2-5d6a-bcdb-e0084731f25f, which is the method illustrated in the R script in the how-to guide
The file at your link contains the compressed data. You need to use the PHP script to decompress it
Jeremy