Temperature Anomaly Data During Holocene In Computer-readable Format?

For some numerical experiments in Example Based Modeling (EBM) I am looking for temperature anomalies data for the 10k years of Holocene, preferably for the northern hemisphere.

Can anybody here point me to such data, acknowledged by the scientific community, and preferably in a popular format, like CSV?

Thanks and best regards rudel stricker rst.tbus@gmail.com