folderPath = "/Volumes/NT-Labor/2024/sioe/High Speed Messungen Oktober/";

% Get list of all files in the folder and subfolders
fileList = dir(fullfile(folderPath, '**', '*'));

% Loop through each file
for i = 1:length(fileList)
    % Get the file name and path
    oldFileName = fileList(i).name;
    oldFilePath = fullfile(fileList(i).folder, oldFileName);

    % Skip if it’s a directory or hidden file
    if fileList(i).isdir || startsWith(oldFileName, '.')
        continue;
    end

    ismat = strfind(oldFileName, '.mat');

    if ismat
        continue;
    else

        % Find position of last dot (for file extension)
        dotIndex = strfind(oldFileName, '.');

    % Only proceed if there is more than one dot in the file name
    if ~isempty(dotIndex)
        
        % Replace all dots in the "base name" with underscores
        sanitizedBaseName = strrep(oldFileName, '.', '_');
        
        % Create the new file name with the corrected extension
        newFileName = [sanitizedBaseName, '.mat'];
        
        % Full path of the new file
        newFilePath = fullfile(fileList(i).folder, newFileName);
        
        % Rename the file
        movefile(oldFilePath, newFilePath);
        fprintf('Renamed: %s -> %s\n', oldFilePath, newFilePath);
    end

    end
end