Sorry, let's close this issue please.
3.) video tutorial
I found the video tutorials at Getting Started. My note-PC missed it.
1.) Excel importer
Now I am getting understand of the errors. I didn't understand the relationship of "Entities of page" and "Entity of table". And I didn't find how to do at the video tutorials. Anyway I will try it.
2.) Term Server
Now I was successful to upload to the Term Server with easy entry and page. I don't know yet the url where I uploaded to Term Server, But I will look for it.