Click Help>>Search the LabVIEW Bookshelf. Under Application Notes you will find a document called "LabVIEW Data Storage" (App Note 154) which describes the way LV saves data. If you don't have it, you can find it on this site.
Another option would be to save your file as an ASCII file, which can then be opened even from notepad. You may need to use the VIs in the string palette to convert your numbers into strings.
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