How to import and save Multiple Text Files and creating a Matrix for each files

I have a very large data set which is divided in folders, I have 100 folders with approximately 200 text files each. I have been trying the for loop first of all importing one and then in another command importing the rest. But I am not interested in a dataarray but rather conserving each file with its name as I have to then match the dates among all the files and each file does not have the same amount of columns.

Each text file has is like the one I have attached, where the data I need is from the row 23 until column 13.

The data names are saves as 010010.txt, 010030.txt, 010050.txt ......until 014957.txt , they are not sequential

Apart from this I have created a script for importing one file but I would like to know how to repeat the same script for the rest.

filename = 'C:*\010010.txt';

startRow = 22;

formatSpec = '%4f%6f%6f%6f%6f%6f%6f%6f%6f%6f%6f%6f%6f%[^\n\r]';

fileID = fopen(filename,'r');

dataArray = textscan(fileID, formatSpec, 'Delimiter', '', 'WhiteSpace', '', 'HeaderLines' ,startRow-1, 'ReturnOnError', false);

fclose(fileID);

Untitled (010010) = [dataArray{1:end-1}];

I would like to repeat the same import process but for the rest files. I would appreciate any suggestion