Yes, you can redeem your Avios or Qcredits* for excess baggage awards. Baggage awards can only be used on Qatar Airways flights and not code-shared nor partner airlines. The maximum excess baggage allowance and Avios or Qcredits* required per award will depend on where your travels take you. Excess baggage awards, once issued, are non-refundable.
For more on excess baggage awards, click here
*Redemption of Qcredits for excess baggage is applicable only for Platinum and Gold members. Read more about Qcredits.