Importing dates

Hi, I’m having trouble importing dates from a .csv file. In the file I’m trying to import each row has an entry in a column called Date formatted ’18-04-2008′, ’26-04-2008′, etc. When I import this into a column with the date format they all come out as 30/11/-0001.

I’m very new to this, so this is likely something very simple, I just can’t figure out what it is, and would appreciate some help…

thanks!