instead of using load, you could use textscan to read in the txt file
endNotReached = true;
counter = 1;
fid = fopen(stringTextLocation);
while endNotReached
rawData = textscan(fid,'%f%f%f', 50);
if size(rawData,1) < 50
endNotReached = false;
end
fidWrite = fopen(['data' num2str(counter) '.txt'],'w');
fprintf(fidWrite,'%f%f%f\n',rawData);
fclose(fidWrite)
counter = counter + 1;
end
fclose(fid)
