importing 2 excel sheet the same time

Hi, I need to import 2 excel file to build 2 line in one graph. I could import my first file,but second file saying error. How I can import my second file also? Thanks!

Here is my code:

[NUMERIC,TXT,RAW]=XLSREAD('Corren.xlsx')

a=NUMERIC(:,1);

b=datenum(TXT(:,2),'dD/mm/yyyy');

plot(b,a,'.')

hold on

[NUMERIC,TXT,RAW]=XLSREAD('CorCumNT.xlsx');

Here is what it says: XLSREAD unable to open file CorCumNT.xlsx.

[jgg]

There are many possibilities.

Is the file open in another program? Does it have the correct name (including extension)? Is it in the same directory as the script you are trying to run?