The whole process was discovered by experimenting - combining the results of scanning and entering data.
Computer programmers reassembled the 2-D images to create a 3-D presentation.
Thirty people worked on the project: the virtual technicians, the people from the National Hospital of Neurology and the archaeologists.
They intend to continue with the project as there are over 100 mummies in the museum.
Dazzled
I thoroughly enjoyed the exhibition.
It was extraordinary to watch the life of an ancient man - all this is possible through technology.
It was a little gruesome though so I would recommend it to children aged seven and above who wish to be dazzled."
Elizabeth, 12, Sutton
Mummy: the inside story opens at the British Museum on Thursday 1 July.
Why don't you write us a Press Pack report - and get it published on the site?!
It can be about anything that's happened in your local area - or your views on the news.