filename = 'xx/1.txt';
delimiter = '\t';
startRow = 3;
endRow = 100;

formatSpec = '%f%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%*s%[^\n\r]';
fileID= fopen(filename,'r');
dataArray = textscan(fileID, formatSpec, endRow-startRow+1, 'Delimiter', delimiter, 'HeaderLines', startRow-1, 'ReturnOnError', false);
fileID = fopen(filename,'r');
time = [dataArray{1:end-1}];

clearvars filename delimiter startRow endRow formatSpec fileID dataArray ans;