swift 3.1 how to get array or dictionary from CSV

What you want to do is splitting up the string in rows and then into columns (basically a two dimensional array of Strings). Swift already provides the components method for that on String structs.

func csv(data: String) -> [[String]] {
    var result: [[String]] = []
    let rows = data.components(separatedBy: "\n")
    for row in rows {
        let columns = row.components(separatedBy: ";")
        result.append(columns)
    }
    return result
}

Then you can access any value via:

var data = readDataFromCSV(fileName: kCSVFileName, fileType: kCSVFileExtension)
data = cleanRows(file: data)
let csvRows = csv(data: data)
print(csvRows[1][1]) //UXM n. 166/167.