Application Development Software

Hi,

we have documents checked in valts and are under stages of a workflow. When I'm indexing all documents are not getting fulltext indexed.
Does it has to do something with the workflow status of a document?
Also have one more query?
Which types of files are supporterd on fulltext indexing?
e.g. .pdf, .txt, .doc, .xls, .ppt, .odt, .odp
Does open office docuemnts are supported for Fulltext indexing?

Regards,
Manish