My original message was untitled (I signed into blogger using gmail account) and used 'New Post' > 'Post' tab > 'Edit' to give my original untitled post a title.
When you click 'Share' it warns you you have not saved it, so I saved it as Zoho Writer - Saving... and am retrying the 'Post to Blog'
Zoho Writer has a 'Get my Blogs' window and window with a 'Post as Draft' or 'Publish' option. I will try the 'Post as Draft' option.
When I logged into Blogger I found the draft. The file title had became my blog title. Next I 'Publish Post'