Exporting your contacts from ConstantContact via CSV and importing them to Nimble is very simple. Just take the steps below:
Step 1: Click Contacts.
Step 2: Click the Contacts tab.
Step 3: Click ... > Export All Contacts.
Step 4: Select all the fields you want to include in your file.
Step 5: Click Export.
Step 6: Click Download CSV to save your spreadsheet.
Import to Nimble
Click your avatar in the top right hand corner
Choose Networks & Imports
From here, use the Import Wizard to upload your file.
For more information about this feature, please take a look at the following: