TOPIC:

i want to get annotation file path and file type that saved in wp8.1?

Incomplete answer.
Look at message below.

Methods you're looking for aren't yet available on Windows version.
We are including them and soon you will be able to use them.

Question: are you looking for the way to get linked file or attached file?

In both case, your second request "file type" should be developed on your own.

You should cycle through page's annotations looking for Attachment annotations (m_annotation.IsAttachment()).
When you get an attached file you could extract it using:
m_annot.GetAttachmentData
m_annot.GetAttachmentName
methods.

As told before, file type identification should be done on your side.
Look at here msdn.microsoft.com/en-us/library/ms775107(v=vs.85).aspx.

sorry but i want to get all the annotations for a file (saved or n0t saved)
Is there any method exports the annotations as an XML or even code to loop on annotations but to get the xml saved.
Also to import this text later??

Not yet.
The feature isn't available in any of the three supported platform.

We're still evaluating to support it.