Hi, I've been testing out how SensorKit collects data on iOS for a few days now. To this end, I have been trying to see what the ambient light data that has been collecting for a few days looks, and have been trying to decompress the lz4 file that is exported when I export from Research Sensor & Usage Data on my iPhone. I've tried a few methods to decompress lz4 (like lz4 on the terminal) to no avail. What I tried was: lz4 -d filename.lz4 The error is: Error 44 : Unrecognized header : file cannot be decoded When I try to find out more about the file, file filename.lz4 it simply says data. I am wondering how I can view the contents of this lz4 file.