How to Import data from a spreedsheet to an table with autonumber

[nisha]

Basically I exported data from an table, which has an auto-number as primary
key to an excel, then in the excel I removed to auto-number column data and
tried to import it back again it get

 

[John Nurick]

The column headings in the Excel table must exactly match the field
names in the Access table.

If that's not the answer, please ask the question more precisely<g>.