read .csv file, append content to another .csv file

Hello,

I have two csv files, file1.csv and file2.csv (see attachments).

I want to append all the data -except the header and the first line- in file2.csv to the data already present in file1.csv .

To be clearer,

if file1.csv is

header1,header2,header3

1,2,3

3,4,5

and file2.csv is

header1,header2,header3

3,4,5

6,7,8

9,10,11

I want to get as file1.csv

header1,header2,header3

1,2,3

3,4,5

6,7,8

9,10,11

Thank you in advance :)

Answer 1

[Mathieu NOE]

hello

this is it :

data1 = readcell('file1.csv');
data2 = readcell('file2.csv');
[m,n] = size(data2);
data_out = [data1;data2(2:m,:)];
writecell(data_out, 'file_out.csv');

I noticed that your first file ends with time iteration = 4 and and the second file starts also at the same time iteration

maybe one line to be removed if duplicates ?

all the best

[Kevin Wittkowski]

Thank you Mathieu :)

[Mathieu NOE]

You're welcome !