MATLAB: Textscan with repeated header lines. Remove the repeated header lines.

fopentextscan

I want to extract the values of csv file. The csv files contains repeated headers. Example:
\n
Scan Parameters
\n
Scan Type,Standard Scan
ID,700
Stylus,Radius: 12.5 ยตm
Length,600.0 um
Duration,30 sec
Resolution,0.067 um/sample
Force,1.00 mg
Measurement Range,524 um
Profile,Hills
\n 
\n
Scan Data
\n
Horizontal Distance,Raw Data,
um,A,
0.0,0.0,,
0.1,15.8,,
0.1,15.8,,
0.2,6.8,,
0.3,0.5,,
.......................................
599.8,23.9,,
599.9,30.4,,
599.9,30.2,
\n
Scan Parameters <------- this is the first line of the 2nd set of headerlines
There is a repeated set of headlines in the data file. The first of headlines is 18. Then there is a newline and then follows another set of repeated headlines. I would like to remove all this headers and extract only the values.
For only one set of headerlines I do this and I extract all the values. after the headerlines. I haven't managed to do it with multiple headerlines.
    textscan(fid(i), '%f %f','delimiter',',','HeaderLines',18,'MultipleDelimsAsOne',1)
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