I don't know why I can't open a text file?

I want to open the text files, but after I download them I don't know how to open them in MATLAB, I tried using the load function but it just says

Error using load

Unable to find file or directory 'age.txt'.

Text files:

age.tx\tDownload age.txt

systolic_bp.txtDownload systolic_bp.txt

diastolic_bp.txtDownload diastolic_bp.txt

[dpb]

Of the options @Sulaymon Eshkabilov gives, (2) is by far the preferred solution to use as well as is creating a fully-qualified file name by using the <@doc:fullfile> function to catenate directory/folder strings to file name strings.

My personal favorite would be instead to use something more akin to

downloadDir='C:\Users\Public\Downloads';        % save the download root directory location
fn=fullfile(downloadDir,'age.txt');             % create the name

or, even easier, less data-specific

downloadDir='C:\Users\Public\Downloads';        % save the download root directory location
project='Homework';                             % have a given place for the files to live
fn=fullfile(downloadDir,project,'*.txt');       % create a matching wildcard name for those wanted
d=dir(fn);                                      % and return a dir() struct with matching files
for i=1:numel(d)
  fn=fullfile(d(i).folder,d(i).name);           % and get each name in turn...
  %...read, process each here in turn...
  ...
end

Answer 1

[Sulaymon Eshkabilov]

(1) Do you have your downloaded file (age.txt) in your MATLAB's current directory

OR

(2) Did you show the directory address while reading the data file, e.g.:

D = readtable('C:\Users\Public\Downloads\age.txt')

OR

(3) Did you added the path of the directory where age.txt file is residing, e.g.:

addpath('C:\Users\Public\Downloads')
D = readtable('age.txt')