.PLOG File

The plog file extension seems to be mainly related to PLog programming language and most likely used for its default source code file type. PLog is a extensible and easy to use logging library for PHP5. 

It also seems the plog file extension was used for some password stealing malware for Steam accounts.

How to open:

These *.plog files are most likely editeable using any text editor.

How to convert:

Probably cannot be converted to anything else.