Access different files with the same name in different folders which are named numerically

I have got data in folders named 1,2,3... and in each folder I have couple of .xls files. the names of the .xls files are same. Eg:1\E300; 2\E300; 3\E300;... I want to write a program so that I am able to retrive the data and perform some calculations instead of reading every data one by one.

Answer 1

[Walter Roberson]

http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F

Answer 2

[the cyclist]

One of several ways:

N = 50; % Number of directories
for i = 1:N
  filename = [num2str(i),'\E300.xls']
  % Do whatever
end

Answer 3

[Azzi Abdelmalek]

for k=1:10
file=sprintf('D:\\%d\\E300',k)
end