NPSP Administrator's Guide to Importing Donor Data (in PDF format)
Audience and Prerequisites
You should have some familiarity with Salesforce and the Nonprofit Success Pack before attempting to step through this guide. If you haven't done so already, we recommend that you complete the Nonprofit Fundraising Trail before proceeding.
You should also be familiar with the Salesforce Account model before attempting to import any data. In particular, you should be familiar with the Household Account Model, which is the default account model for NPSP version 3.0 and later.