Hi Bob,
If you look into the "Write to spreadsheet file", there's an input for the format specifier. This defaults to %.3f, which will save binary data in ASCII with only 3 decimal places. If you need more (say 10) then wire a string with %.10f and it should work fine.
Hope this helps
Shane.
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)