Newsgroups: comp.text.tex

> I wanted to make all my figure and table captions into \emph.
> Instead of making changes in each and every figure and table,
> I wish to alter through some script.

The packages caption.sty or caption2.sty should help you. And, BTW, I think you don't want to use \emph{…} (or even \em) but \itshape (or \slshape).

Olaf