How to import data from multiple different name text file?

I have about 2380 txt files data starting with file name "lineScan__2017_11_27_17_19_18" and ending with "lineScan__2017_11_28_12_25_59". the files were named according to date and time. "2017_11_27" represents the starting date and "17_19_18" indicates the starting time. I want ti import them into matlab but got this error "unable to open file"

I will appreciate your help to resolve this issue.

Here is the code i wrote:

close all;

close all;

%need the axial step size

Axstep=2.5; 

Axlines=2380; 

Path = 'C:\Users\asay0001\Google Drive\all data';

Data = zeros(33600,Axlines);  

for i = 1:Axlines

     DataTemp = importdata(strcat(num2str(i),'.txt'));

     Data(:,i) = DataTemp(:,4);

end

Steps = DataTemp(:,1);

Axsteps=[1:Axlines]*Axstep;

figure; plot(Steps,Data(:,[1:Axlines])); grid on;

%need the lateral step size

Latstep=Steps(2)-Steps(1);

[x y,z] = meshgrid([-3200:2.5:-2602],[325:2.5:325],[-800:100:800]);

surf(x,y,z,Data')

Answer 1

[KSSV]

files = dir('*.txt') ;    % get all text files of the folder 
N = length(files) ;      % Toatl number of files 
for i = 1:N              % loop for each file 
    thisfile = files(i).name ;    % present file 
    %%do what you want
end