Add Asterisk between Numeric and Alphabets

Hi k_mathana 

Download sample PBIX file with solution

This Power Query M code does the job.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("i45WMorSNTAwMFSK1YlWMjQyCTY0MgCzTY1MHA2NTR2hEkqxsQA=", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Value = _t]),
    #"Added Custom" = Table.AddColumn(Source, "Custom", each Text.Combine(List.Transform(Text.ToList([Value]), each if Text.Contains("ABCDEFGHIJKLMNOPQRSTUVWXYZ", _) then "*" & _ & "*" else _ ))),
    #"Added Custom1" = Table.AddColumn(#"Added Custom", "Custom.1", each if List.Last(Text.ToList([Custom])) = "*" then Text.Combine(List.RemoveLastN(Text.ToList([Custom]))) else [Custom]),
    #"Removed Columns" = Table.RemoveColumns(#"Added Custom1",{"Custom"})
in
    #"Removed Columns"

Regards

Phil