It seems that SD card does nothing, because, without Internet connection, OpenScope USB connection to WaveformsLive works regardless is card inserted or no.
P.S.
Maybe it works from the browser cache?
So once I've logged a file to an SD card, how do I get hold of the data? I can download the file to my computer but I can't read it as its in some unknown binary format and I can't export it to something like and ascii text or .csv file.
Am I missing something here? or have I got a logger that can capture data but the data can't be displayed, viewed or otherwise accessed?