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Unable to load previous .mat file versions in latest MATLAB version

Asked by divyasami27 on 9 Mar 2018
Latest activity Commented on by Walter Roberson
on 18 May 2018

I created a .mat file in MATLAB version : R2014a and I try to open it in a later MATLAB version: R2017b and I am getting the following error:

Unable to read MAT-file <my file path> Not a binary MAT-file. Try load -ASCII
to read as text.

  11 Comments

Hi, did you solve this? I am getting the same error message

Yes I did but I am not sure if we have the same situation. I was writing to the file on Linux and then reading from Windows, in short they have different new line sequences so this error shows up (Windows has extra stuff) as being a corrupted file. This was the cause, but I guess it didn't really solve the issue. You might try specifying the version of the MAT-file instead of just writing variables to it, like this save('a.mat','x','-v7')

.mat files are binary files that do not use line terminators.

Historically there could be problems sending binary files between systems by modem as the software was sometimes set to convert newline characters automatically (which does not work for binary files)... but those days are long behind us.

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