Thanks for you fast reply.

There is actually only one channel and the number of samples are less than 100M.

I tried to attach the file here but apparently .mat files are not allowed.

Thanks,
Sara

Hi, I have problem opening the .mat files that are cerated by Picoscope 6 on mac. I have used Matlab version 7.12.0.635 to load them without success. It gives the error: Error using ==> load Can't read file ..\xyz.mat I think this might be because of the version of the .mat file (which is 4). I appr...