ASCII (Text) End of Line Conversions
ASCII Data files written on the Mac - with the Mac end of line convention can be opened directly by word in Windows, and saved as 'text only'. The files will be saved with the DOS end of line convention.
Ultra Edit*, on the other hand, will convert from Mac to DOS when reading the file, but will write it back out in Mac convention. To convert in Ultra Edit, use File / Conversions / Unix/Max to DOS, then resave the file.