Updating AD users using a field from a CSV

Hi,

I was wondering is somebody could assist with a very simple process I am trying to complete but I just do not understand how.

I have the following piece of PowerShell below to query users in AD by their EmployeeID and works as expected.

Import-csv C:\Temp\raw.csv | ForEach-Object {
    $ID = $_.employeeID
    get-aduser -filter {employeeid -eq $ID} -Properties * | select-object emailaddress,employeeNumber,employeeID,surname,givenname | Export-Csv C:\Temp\exportADUser.csv -Append -NoTypeInformation

}

The headers in my CSV are as follows:

UserEmail,EmployeeNumber,EmployeeID,LName,FName

From the query above I would then like to update the EmployeeNumber for each AD user using the the value in the CSV.

I assume this will require the Set-ADUser cmdlet and the Foreach loop but I'm unsure how to amend my current PowerShell to get this working.

If anyone could assist that would be great.

Kind Regards

Dean