Hi Ivan,
PCD inspector isnt good enough, since Andrew wanted to extract the informations he need automatically in Excel format, this isnt supported. For myself, I suggest this tool to my customers for creating custom PCD properties e.g., or more generally for providing functionalities not covered by content administration role.
This is indeed a task you could suggest for developing by SAP: there is nearly no tool support for automatic PCD processing, excluding the search and replace tool in content administration role. I know this, because I had innemurable request by severals customers asking for analyse POI office exports, comparing PCD content between different systems and many other PCD tasks. I had to do it all on my own with custom PCD tools developments.
cheers