Hi Manoj,
I understand that you have data in 1008 csv files and want to extract the first column of each csv file to a matrix.
You can use 'dir' function to read the name of all files with csv extensions and then iterate over the files using a 'for' loop.
To read data from csv files you can use 'readtable' function. To import specific column from the csv file, you can specify options and select the variable names using 'SelectedVariableNames'.
Refer the below link to know how to create import options object for a csv file.
I hope this helps.
