Multipart data

[cofactor]

what is multipart form data ?

does it mean if i want to upload 3 files at a time i would call this as multipart ?

if i upload one file , i will call single part data ?

this word "multi part " is creating trouble . can u explain a bit ?

[Kor]

http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.2