fopen fails to open the file

Hi there,

small example file (test.m):

 if true
clear all; clc;
disp(fopen('C:/test/test.csv'));
disp(fopen('test.csv'));
  end

my current directory is also C:/test/ and the file (test.csv) exits as well.

but still both lines of code return the value -1 which indicates that the file couldn't be found and I don't know why.

Any hint?

Answer 1

[Sean de Wolski]

Is test.csv opened in another application?

[William]

awwww man, so stupid -.- *facepalm

many thanks

Answer 2

[Walter Roberson]

[fid, message] = fopen('test.csv');
if fid < 0; disp(message); end