Sys Eng,
You say you have an array that contains both numbers and characters. I take it that the "numbers" are actually strings of numeric characters, right?
From your function palette, try using "String->Array to Spreadsheet String". (Set the 'format string' input to be "%s" and optionally set the delimiter to be a comma ",".) The output from this function can be passed to 'Write Characters to File.vi' and should import cleanly into Excel.
-Kevin P.
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