Hi everyone 
I'm struggling with updating records in my table by importing from an excel spreadsheet.
I have tblContacts with the primary key being [CustRef] and a field called [OtherEnqSource] amongst other fields.
I have 359 records where I want to change the value in [OtherEnqSource] but when I try and import from excel, I keep getting errors around key voilations as the [CustRef] already exists.
I've tried an Update query but do I need to first import the changes into a new temporary table and then update the existing table from there?
any help is greatly appreciated

I'm struggling with updating records in my table by importing from an excel spreadsheet.
I have tblContacts with the primary key being [CustRef] and a field called [OtherEnqSource] amongst other fields.
I have 359 records where I want to change the value in [OtherEnqSource] but when I try and import from excel, I keep getting errors around key voilations as the [CustRef] already exists.
I've tried an Update query but do I need to first import the changes into a new temporary table and then update the existing table from there?
any help is greatly appreciated