Formatting date column

@srinivas_pradeep
have a look here, especially at the provided description on how the datatable can be inspected within the immediate panel during debugging

:ambulance: :sos: [FirstAid] Datatable: Debug & Analysis invalid DateTime Strings / String to DateTime Parsing Issues - News / Tutorials - UiPath Community Forum

if really an OADate number is to handle, then we will convert it into a number as the method will work with numbers and not with strings