URGENT Unable to load .mat file

load('C:\Users\mirla\Desktop\my_data_folder\velocity_data.mat')
Not a binary .MAT file. Try load -ASCII to read as text
load('C:\Users\mirla\Desktop\my_data_folder\velocity_data.mat','-ascii')
Input must be a MAT-file or an ASCII file containing numeric data with same number of columns in each row.
The file is about 24 GB large and is from 2015, so probably last use with the version of that year.

Answers (1)

Since it's not a binary .mat format file, but a text file, did you try opening it as text file and using fgetl() or fread() or textscan?
% Open the file for reading in text mode.
fileID = fopen(fullFileName, 'rt');
% Read the first line of the file.
textLine = fgetl(fileID);
lineCounter = 1;
while ischar(textLine)
% Print out what line we're operating on.
fprintf('%s\n', textLine);
% Read the next line.
textLine = fgetl(fileID);
lineCounter = lineCounter + 1;
end
% All done reading all lines, so close the file.
fclose(fileID);
Or you could try dlmread(), importdata(), or textscan().

4 Comments

Mirlan Karimov
Mirlan Karimov on 4 Jun 2020
Edited: Mirlan Karimov on 4 Jun 2020
dlmread() takes a long time and gives error
importdata gives the following error
Warning: File contains uninterpretable data.
> In importdata (line 146)
textscan gives the following error
Error using textscan
Not enough input arguments.
I will give a try to the code you have provided and get back to you.
Worst case, if you can't find a convenient built-in function to do it, is to just use fread() and parse the data yourself.
That was a version problem, 2019 version opened with no issue. My laptop has 2020 and the office computer has 2019. That is crazy, I wasted hours on this :D Should I accept your answer, I have no clue. Thank you, anyway tho!
That was actually not a version problem, I opened it in my office computer and saved again as a mat file then it worked in my laptop too.

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Release

R2015b

Asked:

on 4 Jun 2020

Commented:

on 5 Jun 2020

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