empty /blank spaces Navision 2009

Hello everybody,

I am importing data from an excel table, in a cross reference, but I need to upload the information with an empty space at the beginning of the number, like this,
' 123 456 466'
In the excel table is written: ' 123 456 789 , but when the data is imported is deleting the empty space, is there a special character to do this?

thanks

EMilio