Thanks for your comment @professorhob

I have not even tried to do it myself, you should go to the wallet area (top right of your menu), then you have to transfer to saving, to do so see that next to the steem and steem dollard there is an arrow, if you open a menu with the item 'transfer to savings', after you have steem on the saving part you can make wildraw, always pressing on the arrow next to the number of steem you have, and then 'wildraw steem'.

I think after this step will ask you to specify a wallet address, I noticed that steem provides its applications here:

https://www.steem.center/index.php?title=Steem_Wallets