Hi Nitin,
Yeah i understood your scenario but i do not have table with that many columns. So first i need to import with your excel and then try your scenario.
So if you do not have excel of the same atleast send the 583 columns excel so that i can increase the columns, do the upload and then try for export.
Also when you export the table, what is the export location you are choosing:
Default directory or export catalog objectsto current client.
Try both options first, still not resolved then send across the data.
Regards
Raj