Good morning everyone,
Below is the process of exporting a test blog from Blog.com and what we want is to take the tickets and others to Blogspot (Google). This is how the Test Blog shows that I am going to import, as you can see an entry that puts Test.
To do this we enter our Blog.com account where we have the Blog to import, click on Tools / Export
We select all the content and click on download file. 
You will see that it is an xml file that contains the info of our Blog. Now we must make an intermediate step to make that xml understandable for Blogger because they are not compatible in itself, there is a page that is supposed to convert an XML file exported from a Wordpress blog to Blogger but we will use it since it will make it compatible to us equally:
http://wordpress2blogger.appspot.com/
We enter that page, we give the button to examine, we select our xml file generated in the blog's export in Blog.com and click on Convert
The new xml file that generates us is the one that we will import in Google Blogspot. Now we go to our Blog created in Blogger / Blogspot, we enter configuration / Export in the new Google blog. We select the last xml generated and we give it to import (check that the entries are published if you want them to appear automatically).
And Voila! as you can see the entry from before is migrated in our Google Blog 
I hope you have served, keep in mind that some images will have to upload them again or that something is out of line, it is advisable to check the entries.