Import carriers via Import Products Wizard
If the file to import has the columns with carriers data, you can transfer such information to the store by using the Import Products Wizard tool:
Follow through the main steps of the simple import procedure and take the special account to the Assignment step :
To be able to import columns with carrier records, you should link them with the appropriate fields of the store database (see an illustration above) .
On the preview import step, you can see the Carriers among the other data which will be imported.
Once the import is completed you can check the updates in Store Manager: