[Closed] write info to a txt file

how can I store data to a txt from my batch export

for example

every time I export I want to store the time and each file exported

example

30-01-2011 23:48:45
– box01.3ds
– box02.3ds
– box03.3ds

and if I export again the file need to be like this

30-01-2011 23:48:45
– box01.3ds
– box02.3ds
– box03.3ds

30-02-2011 12:22:05
– box01.3ds
– box03.3ds

my script is this

                     exportfilelog = "C:\\TEMP\\ExporterLog.txt"
                     exportlog = openfile exportfilelog mode:"a+"
                     skipToNextLine exportlog
                     format "%

” (“localtime as string”) to:exportlog
skipToNextLine exportlog
for obj in selection do
(
format “%
” (obj.name) to:exportlog
)
close exportlog

thanks for the help