I'm working on a tool that I later hope to have integrated into Backtrack. It's a very useful tool. Anyway, can someone assist me with extracting Excel file metadata? I am able to extract metadata from any other file, but I'm having the most difficulty when extracting data from Excel files. Assistance with PowerPoint metadata extraction in linux would also be helpful.
I've conducted various searches to find more information to this, but I keep running into a dead end. DOC files work fine; however, Excel and PowerPoint files do not.
EDIT: I can extract metadata from Excel files, but there is only a limited amount of information I can get back. I have opened the file manually and located additional metadata (which also was discovered by FOCA), but I cannot do this with Linux. >_<