Unable to add an extra column to an existing CSV file

Question

I have a .csv file which contains data as below:

Name ID
ABC 1234
CDE 3456

I am trying to insert a column called \"Date\" as the first col

Answer 1

You can make use of calculated properties like this -

Import-Csv -path C:\filename.csv |
Select-Object *,@{Name='Date';Expression={'2018-03-28'}} | 
Select-Object Date, Name, ID |
Export-Csv -path C:\Outfile.csv -NoTypeInformation