How to rename column name as current Date dynamically?

Hi DeepakNarayan 

Try the below.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMjIwtFTSUTJVitUhgmOElWMB5BgaEMuzQOPEAgA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type text) meta [Serialized.Text = true]) in type table [Year = _t, #"Value " = _t]),
    #"Changed Type" = Table.TransformColumnTypes(Source,{{"Year", Int64.Type}, {"Value ", Int64.Type}}),
    #"Renamed Columns" = Table.RenameColumns(#"Changed Type", { 
            {
                "Year", 
                let 
                    currentDateTime = DateTimeZone.LocalNow(),
                    currentYear = Number.ToText( Date.Year( currentDateTime ) ),
                    currentMonth =  Date.MonthName( currentDateTime ) 

                in  currentYear & "-" & currentMonth 
            } 
        } 
    )
in
    #"Renamed Columns"

Best Regards,
Mariusz

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