Moving Your Blog to WordPRess from Blogger

By Lisa Sabin-Wilson from WordPress For Dummies, 5th Edition

Blogspot or Blogger — the blogging application owned by Google is referenced either way. To begin the import process, first make sure you have backed up your files and converted your templates. Then follow these steps:

Click the Blogger link on the Import page and install the plugin for importing from Blogger.

Click the Activate Plugin & Install Importer link, and the Import Blogger page loads with instructions to import your file.
Click the Authorize button to tell WordPress to access your account.

A page from Google opens with a message that says your WordPress blog is trying to access your Google account.
Enter the e-mail address and password you use for Google; then click the Sign In button.

The Access Request page in your Google Account opens. When you have successfully logged in, you receive a message from Google stating that your blog at WordPress is requesting access to your Blogger account so that it can post entries on your behalf.
Give your permission by clicking the Grant Access button on the Access Request page.

If you have many posts and comments in your Blogger blog, the import can take 30 minutes or more.

After the import script has performed its magic, you’re redirected to your WordPress Dashboard, where the name of your Blogger blog is listed.
To finish importing the data from Blogger, click the Import button (below the Magic Button header).

The text on the button changes to Importing . . . while the import takes place. When the import is complete, the text on the button changes to Set Authors (no wonder it’s called the Magic Button!).
Click the Set Authors button to assign the authors to the posts.

The Blogger username appears on the left side of the page; a drop-down menu on the right side of the page displays the WordPress login name.
Assign authors using the drop-down menu.

If you have just one author on each blog, the process is especially easy: Use the drop-down menu on the right to assign the WordPress login to your Blogger username. If you have multiple authors on both blogs, each Blogger username is listed on the left side with a drop-down menu to the right of each username. Select a WordPress login for each Blogger username to make the author assignments.
Click Save Changes.

You’re done!