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8 Aug 2014 I need to read in a .csv file with 4 columns and over 2 million rows. The columns consist of a 3 row header followed by 50,000 numerical values; 16 Jun 2016 with the "Import Data" option in Matlab it is easy extracting the data I want. The problem is that as soon as I import more than 10.000 cells at How to read large text data into matlab. Learn more about read data to matlab, text file, blocks. I am trying for reading and writing a text file (a notepad file with 44 lines) in Matlab. I want to read only lines 2 to 44 of the attached picture (my notepad file) in15 Aug 2015 Reading a huge text file using Textscan(). Learn more about memory, matrix array, textscan, text file MATLAB. What is the quickest way to load the file? I use loop to load line by line and remove all lines with bad data points, however, it takes extremely long time. 2 Jul 2012 I am reading a large text file ~3GB in chunks. Each time I open the file,I read the header lines, then read a chunk "of lets say 1000 lines", then I 25 Jun 2014 I have a large text file with 3000000 rows and 1200 columns. I have split this into 15 files of 200000 rows each. But even the smaller files are 14 Nov 2013 Learn more about large files, fread, data files, data acquisition, read data For text files you may use "fopen" and "fgetl" to read line by line. I had a large textfile with about 1001 rows and 5 columns of strings in 1st row and numericals in remaining rows. I would like to read this data from file and would