Redeeming an Xbox Gift Card is a simple process:
On Xbox Console:
Go to the Microsoft Store.
Select Redeem Code.
Enter the 25-digit code from the gift card.
The balance will be added to the user’s Microsoft account.
On Windows PC or Mobile:
Sign in with a Microsoft account.
Enter the gift card code and click for get offers
Once redeemed, the balance can be used across all Microsoft platforms.