How to extract specific row from a large csv file and reshape it

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Minions
Minions 2021-3-1
编辑： Minions 2021-3-2
I have several csv files with 64 columns and many rows. I need to extract the 1, 100,200,300 rows then reshape into 8,8 matrix and do the imaging of it. Can anyone give me some idea or guidelines to do that? Any kinds of idea will be really appreciated. For the convenience, I am attaching an example for the file.

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Jan
Jan 2021-3-1
Data = csvread(FileName);
Row = [1, 100, 200, 300];
figure;
for iRow = 1:numel(Row)
Block = reshape(Data(iRow, :), 8, 8);
AxesH = subplot(1, numel(Row), iRow);
image(AxesH, Block); % Or how do you want to display?
end

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