You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: GE_readHeader.m
    path of file: ./repos/fieldtrip/external/afni
    
    the code of the file until where you have to start completion: function [su_hdr,ex_hdr,se_hdr,im_hdr,pix_hdr,im_offset] = GE_readHeader(IFileName)
%
% [su_hdr,ex_hdr,se_hdr,im_hdr,pix_hdr,im_offset] = GE_readHeader(IFileName)
% Reads the header info from a GE lx2 or 5.X file
%
%
% Souheil J. Inati
% Dartmouth College
% May 2000
% souheil.inati@dartmouth.edu
%

    
function [su_hdr,ex_hdr,se_hdr,im_hdr,pix_hdr,im_offset] = GE_readHeader(IFileName)
%
% [su_hdr,ex_hdr,se_hdr,im_hdr,pix_hdr,im_offset] = GE_readHeader(IFileName)
% Reads the header info from a GE lx2 or 5.X file
%
%
% Souheil J. Inati
% Dartmouth College
% May 2000
% souheil.inati@dartmouth.edu
%

%%%% Open the IFile %%%%%
[fid,message] = fopen(IFileName,'r','b');         %note: 'b' = Big-Endian format
if fid == -1
  error(message)
end