Still just 20, Mounir has joined us on a three-and-a-half-year deal.
The former Dutch Under-21 international who recently pledged his future to Morocco describes himself as a 'technical player' and a forward who likes to play just off the front man.
Sporting Director Frank Arnesen said: “He is young but he’s already played at the highest level in Holland with Excelsior. He is one for the future, in the category of the likes of Ifil, Ziegler, Defendi and some develop quicker than others. It’s a challenge but he already has senior football under his belt.
“He’s a player a lot of clubs were looking at but we are the lucky ones to sign him.”
Mounir has played for four seasons in the Dutch League - where Martin coached for eight years before joining us in the summer - and scored 11 goals in 14 appearances for Excelsior Rotterdam so far this campaign.
He is now looking forward to his new challenge and said at Spurs Lodge this morning: "Tottenham Hotspur is a big club, has a great history and it will be great to play for them.
"Martin Jol knows me very well because I played in Holland, he knows what I can do and likes how I play football. Frank Arnesen has watched me as well in Holland. They asked me to train here for a few days and it's moved on from there.
"The fact Martin is here is important because I know him, he's very well thought of in Holland and it will be easy for me to talk to him.
"I also know Noureddine Naybet because I will play for Morocco. He is a great player and it's nice to know he's here as well."
Asked to describe his playing style, Mounir smiled: "It's always difficult to talk about yourself but I would say I'm a technical player and I like to score goals."
He then added: "I'm not going to put pressure on myself, I will do my best on the training pitch and see where that takes me."
Mounir El Hamdaoui says the Dutch influence of our Head Coach Martin Jol played a key role in his arrival at Spurs.