what is a .pld file
Messenger Plus! allows to export all its preferences and save them into a single file (.pld) on disk. The .pld file is a binary database container that uses Yuna Software's proprietary format to store the exported settings and preferences. Once saved, the .pld file can be imported to restore the Messenger Plus! settings to their previous state. PLD files saved by earlier versions of Messenger Plus! cannot be used with later versions.