"I have a text file ... I need to convert this into an mfile"
m-files are text files, so you just need to change the extension from .txt to .m, right?
files = dir('*.txt'); % an appropriate call to dir() to get info about your files,
% e.g., if they are all in C:\Docs\, use files = dir('C:\Docs\*.txt')
for ii = 1:numel(files)
fullFileName = fullfile(files(ii).folder,files(ii).name);
[filePath,fileName,~] = fileparts(fullFileName);
movefile(fullFileName,fullfile(filePath,[fileName '.m']));
end
