import a part data from a csv file

I worked on importing csv files for days, but still quite new to Matlab. Sorry for bringing this kind of question again, I did not find an exact answer to my work. I listed my file my code, and hope can get help :). Thanks.

1. csv dataset looks like;

2. my code to do the import;

3. Data I want to have;

4. questions;

 ------------------------------------------------------
 ------------------------------------------------------

1. Dataset looks like:

This csv file is a double-quoted format file. I want to import data from lines below the line with "DataType" and "NET". Until it reads a "blank line". Data should be read into 'NET', 1st column is character, other columns are numeric. Tried to read NET into matrix but fail, but I can read it into cell array type. Please also see Matlab codes in 2.

 ------------------------------------------------------

 "date:", "XX XX"
 "Operator:", "XXXX"
 " "
 "XXXXXXXX", "XXXX", "YYYY", "NNNN"
 "DataType", "NET"
 "a", "b", "c", "d", .. "x"
 "v1", "2", "2", "3", .. "1"
 "v2", "2", "2", "3", .. "1"
 "v3", "3", "2", "3", .. "1"
 "v4", "2", "6", "3", .. "0"
 "v5", "2", "2", "3", .. "1"
 ...
 "v115", "2", "2", "3", .. "1"
         <----------------  (blank line here)
 "other", "other"
 ...
 "other", "2", "2", "3", .. "1"
 "other", "2", "2", "3", .. "1"
----------------------------------------------------

2. My code to do the import:

 fid_t = fopen('C\:data.csv', 'r');
while ~feof(fid_t)
   temp1 = fgetl(fid_t); 
   temp2 = regexprep(temp1, '"', '');
   line = csv2cell(temp2);

   if strcmp(line{1}, 'DataType:')
       if strcmp(line{2}, 'NET')
           O2=line{2};
           fgetl(fid_t);
           NET={};
           while ~feof(fid_t)

              if isempty(line)
                  break;
              end

               tp1 = fgetl(fid_t);
               tp2 = regexprep(tp1, '"', '');
             temp_1 = textscan(tp2, '%s%s%s%s%s%s%s%s%s',...
                'Delimiter', ',');
                temp_2=[temp_1{:}];

                NET{end+1}=temp_2;

              end
           end
   end
end;   
fclose(fid_t);

3. Data I want to have

------------------------------------------------
NET = 
v1  2  2  3  .. 1
v2  2  2  3  .. 1
v3  3  2  3  .. 1
v4  2  6  3  .. 0
v5  2  2  3  .. 1
...
v115  2  2  3  .. 1

 -------------------------------------------------

4. Questions:

1)My code in (2.) worked, and could return a NET cell array for me. But I got error:

 ??? Error using  ==> textscan  First input can not be empty.

NET:

 NET= {1x9 cell} {1x9 cell} {1x9 cell}....{1x9 cell} ....

 NET <1x96 cell>

But how to convert NET to a matrix looks like in 3?

2)Is there any effective way to do this? Columns in NET are not fixed. I have a batch of such kind of files, some of them have only 4~5 columns and some of them have 50~60 columns. I do want to read all these columns into matrix and make it looks like in 3.

Thank you so much.