Dynamic header lins in downloaded file.

hello gurus,

i have Report. i am using that to download data from standard tables and custom tables. here i maitained fieldtables name as headerlines in downlaod files.

that means each file is downloading with fielad lables as like this

name age place

a 20 Bangalore

b 21 Hyderabad

for above format i used GUI_DOWNLOAD FM in my report.I used perametes filename, fieldnames, datatab in that FM.

now my client is asking that the header lines should be generated dynamically

and english speaking colleague should get english headers a german speaking colleague the german headers.

That is my problem, please help me it is very urgent