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skip the headers in a text file and extract the data ?

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Ano
Ano 2016-11-25
评论： unme 2017-2-9
I would like to extract the data only from a text file. the text file has a header which contains some numerical values as shown below?
Matrix detected
Double precision storage used.
Matrix size is 5 x 5
Matrix elements a(m,n)
m: matrix row
n: matrix column
m n value
1 1 -4.741986825761376E+00
2 1 -4.630424392475458E+00
3 1 -4.307409743346405E+00
4 1 -3.804889997051831E+00
5 1 -3.171836516325863E+00
1 2 -4.630424380271435E+00
2 2 -4.741959894978010E+00
3 2 -4.630411248725576E+00
4 2 -4.307409755549543E+00
5 2 -3.804868350860215E+00
1 3 -4.307409755549557E+00
2 3 -4.630411248725565E+00
3 3 -4.741959894978017E+00
4 3 -4.630424380271435E+00
5 3 -4.307397514355404E+00
1 4 -3.804889997051820E+00
2 4 -4.307409743346408E+00
3 4 -4.630424392476307E+00
4 4 -4.741986825762240E+00
5 4 -4.630424392476300E+00
1 5 -3.171836516321907E+00
2 5 -3.804868350853141E+00
3 5 -4.307397514355404E+00
4 5 -4.630424380271435E+00
5 5 -4.741959894978017E+00

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采纳的回答

KSSV
KSSV 2016-11-25
编辑：KSSV 2016-11-25
doc textscan
fid = fopen('your text file') ;
data = textscan(fid,'%f %f %f','HeaderLines',7) ;
data = cell2mat(data)
fclose(fid);

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