>Do you know the exact formula?
Not the exact formula, as it provides repeated results if called within the same millisecond (that is what I read in the thread, I have never tried this function myself) (my guess this is the old formula as sys(2015) was improved for VFP 9 or VFP 9 SP2, IIRC), but this guy wrote a similar one that apparently works:
http://www.mrexcel.com/forum/excel-questions/77351-using-vfps-sys-2015-excel.html
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