Read in the data with readtable(), or with xlsread() if you have an old version of MATLAB. Then use ismember() to select only those rows with CENTRL in the name column. It's something like
t = readtable(filename);
rowsToExtract = ismember(t.Name, 'CENTRL');
centrl = t(rowsToExtract, :); % sub-table.
integratedLoad = centrl{:, 5};
or something like that. I'd maybe have done it for you but you didn't attach your workbook with the paperclip icon. But no problem, you'll probably learn more by doing it yourself anyway. Good luck.
