fnRenameColumns.pq

/*
This function takes a table and renames snake case column names by 
replacing the underscore with a space
*/



(tbl as table)=>

let 

    rename =   Table.RenameColumns(
                tbl, 
                List.Zip(
                    {
                        Table.ColumnNames(tbl), 
                        List.Transform(
                            Table.ColumnNames(tbl), 
                            each Text.Replace(_, "_", " ")
                            )
                    }
                )
            )

in 

    rename