Salesforce data import

We need someone to handle the import of our contact and opportunity data (from Excel spreadsheet) to our [login to view URL] account. Our data currently exists in an Excel spreadsheet and is maintained by one or more employees. The spreadsheet is used to record details such as contact information and donations (opportunities) for those contacts. We use the non profit starter pack and use the one to one data model (one contact for every organization) as well as households. All data will be transformed and de-duped prior to loading and all data will be provided with a mapping document to specifically tie each field to its respective Salesforce field to assist the import. We need someone to import this data and ensure that the imported contacts are properly linked to their respective imported opportunity record(s). Contacts are identified with a unique key and opportunity records have this set as a foreign key to link the records. To summarize: - There are roughly 1200 contacts to import. - All data is has been cleansed and de-duped - All data has primary/foreign keys assigned - Data will be provided with mapping document