The following MATLAB script uses the Delsys file utility to convert an input HPF file to CSV and then load and plot it in MATLAB.
function [ ] = plotdata( file
)
dos(['"C:\Program
Files\Delsys, Inc\EMGworks 4.0 RC4\DelsysFileUtil.exe" -nogui -o CSV -i '
file]);
data = csvread([file '.csv'], 1,
0);
plot(data(:,1), data(:,2));
end