Hi Nishit we have received the below from you:

—————Message from Nishit Starts

I check the did number list document again and found that it has a option named “format” and its possible value is ” csv, xlsx, xls ” and it’s description is ” Enables the user to get DID numbers in other formats via an attachment. Possible values: csv, xls, or xlsx. The UI equivalent of this field is the “File type” input field on the DID numbers list -> Download dialog. ” but i don’t know how i can use it.

If i enable this option it gives blank reply.
—————-Message from Nishit Ends

we have forwarded this to the ste admins to help us with Telinta developer or advice and get back to you, but if you find solution please let us know.
Cheers