With the Windows Live Writer (WLW) you can create or open local draft version of a post. but Windows Live writer don't have a feature of editing the existing posted blogs. But I found one plugin which is very useful to edit the existing blog.
When I search for the edit an existing blog post in google, I came across with the below nice plugin.
Download the below plugin and install it on your machine.
Syntax to open an ex... [More]