Hello.
since Open XML documents are based on OPC and xml vocabulary,
It can be very helpful to search patterns in documents.
for example , if we look for a certain text , or version of a document
we can use outer methods for handle it.
we can search for any type including mime types.
Open XML documents let us dive inside the data and handle
it explicitly.
there are some kind of documents that are based on an image
but in Open XML we can get direct to data, and that is a huge benefit!