It will work with any path as long as that file exists, which yours does not. Are you sure it has two dots in it? That would be unusual. Try this:
fullFileName = fullfile(pwd, '111..txt')
if ~isfile(fullFileName)
warningMessage = sprintf('File not found:\n%s\n\nOn the next screen, select a file.', fullFileName)
uiwait(warndlg(warningMessage))
% Have user browse for a file, from a specified "starting folder."
% For convenience in browsing, set a starting folder from which to browse.
startingFolder = pwd; % or 'C:\wherever';
if ~isfolder(startingFolder)
% If that folder doesn't exist, just start in the current folder.
startingFolder = pwd;
end
% Get the name of the file that the user wants to use.
defaultFileName = fullfile(startingFolder, '*.*');
[baseFileName, folder] = uigetfile(defaultFileName, 'Select a file');
if baseFileName == 0
% User clicked the Cancel button.
return;
end
fullFileName = fullfile(folder, baseFileName)
end
t = readtable('111..txt','PreserveVariableNames',true)
