Where do I....?

[R.O.B.]

I'm a noob. Can someone please tell me where in my SD card do I put an item file?I tried the wiki, but the link didn't work.

[RevengeHunter]

You must have a common3.pac first. Open it with brawlbox and go to ItmCommonBrres. It contains the item pac files. Look for the item you want to replace and replace it with the new item pac. Save and put the common3.pac in pf\system.