Excel changing numberto add decimal places

I am using Excel 2007 and importing a list of coordinates. The coordinates are in a text file and separated by commas, so I'm opening the file as a delimitted file. All of the coordinates import correctly except one. The value is supposed to 52530.6372, but Excel is automatically changing it to 52530.6371999999


If I manually type a "2" to replace the "1999999", it changes it back. If I type "3" it stays as a 3.


I added a round function to force it to round to 4 decimal places and that seemed to work until I then tried using the number with text commands. When I used an ampersand to insert the number into a text string, the additional decimal places are back, even with a round function!


Any thoughts?


Thanks,

Joe