Check for .txt or .mat file

Hello Guys, i want to find out how to determine if an input or selected file from a user is .txt or.mat file. I used this syntax to pick the user input. [filename pathname] = uigetfile({'*.mat'; '*.txt'},'File Selector'); Then i can use it for different functions. Thanks In advance

Answer 1

[Jan]

[fPath, fName, fExt] = fileparts(filename);
switch lower(fExt)
  case '.mat'
    % A MAT file
  case '.txt'
    % A Text file
  otherwise  % Under all circumstances SWITCH gets an OTHERWISE!
    error('Unexpected file extension: %s', fExt);
end

[Stephen23]

+1 this is a clear and robust solution.

[Evans Gyan]

Thank you Jan Simon. That was great. Thanks for the response. It worked

[Alessandro Maria Laspina]

This did not for me, has it changed in R2021 or releases past 2018?

[Jan]

@Alessandro Maria Laspina: This piece of copde does work in R2021a also. If your code does not work, post it in a new question and explain the details.