How to deposit Grin to bittrex

To deposit Grin to Bittrex, transaction file is needed. But I don’t run a node instead I have Grin at Kucoin.
Most exchanges don’t support transaction file as a withdrawal method.

Any idea how to make a transaction file to send Grin? Is there any service where I can deposit Grin and then export transaction file.

You can try withdraw GRIN to your local wallet by service and then send tx as file from local wallet.