how to read a data from text file

I want to read data from text file formatted as follows:

number 7 is the number of points and they are listed in form of (x y z).

_____________________________________________________________________________________________________________________________-

7
(
(-1.4330704e-08 2.9000119e-12 0)
(1.0601769e-06 -0.0001249935 0)
(1.0601769e-06 0.00012499351 0)
(-1.4330704e-08 2.9000119e-12 0.00016666667)
(1.0601769e-06 -0.0001249935 0.00016666667)
(1.0601769e-06 0.00012499351 0.00016666667)
(4.391607e-06 -0.00025131502 0)
)

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how to exclude the first 2 lines and last one and only include numbers inside the brackets and export the as x,y and z arry

Answer 1

[dpb]

zein=readlines('yourfilename.txt');
xyz=str2double(split(extractBetween(zein(3:end-1),'(',')')," "));

[zein]

Thanks alot