Reading and recording in pascal

Hello. I'm here for the first time, so if you're not, you're right.
How can a reading from a file be implemented if the data recording format is not known, i.e. it is not clear how it is written. For example, there's a file, there's a matrix in it.
22 33
44 55
I don't know how to read it to keep the format of the recording, and I'll put it in a new file. If possible, with an example of such a program.
Thank you for the answer.
Complete.
Well, I asked for opportunities... I can give you the code, but he won't give anything, I just don't know how to do it, so I asked.
//считывание reset(f); for i := 1 to n do for j := 1 to n do read(f,x[i,j]); close(f); writeln ('матрица, считанная из файла'); for i := 1 to n do begin for j := 1 to n do write(x[i,j]:7:2); writeln; end;

If the record is like you said,
reset(f); for i := 1 to n do begin for j := 1 to n do write(f, x[i,j]:7:2); writeln(f); end; close(f);
The reading shall be:
reset(f); for i := 1 to n do begin for j := 1 to n do read(f, x[i,j]); readln(f); end; close(f);