Function module to split a string

RKD_WORD_WRAP - I have used it today, the requirement was to split one string of length 255 into 3 and move it to an internal table, I tried lot of other ways, finally one of my vfriend told me about this function module, its so simple, just pass the string and length in which you want to split, and take internal table as output, that table will have the required values, it's so simple.