[rossj]

Make sure your numbers are space separated rather than comma separated, you could pipe your data through sed like..

cat myfile.csv | sed 's/,/ /g' | curl --data-binary @- datafart.com

[niggler]

You don't need cat:

    <myfile.csv sed 's/,/ /g' | ...

[mrud]

sed 's/,/ /g' myfile.csv | ... works as well