Creating a random string in Excel file to use in Katalon test case

Hi, there. I have searched the forum, bu tdidn,t find the solution for:
Creating a random string in Excel file to use in Katalon test case
I need a function to put in excel that will create anytime different string for my test case.
I prefer not to write code if it is possible :-). Thanks

I don’t think this is possible. Any data read in from an excel file will be static data. You will need to write some code to do this.


I didn’t get your point can you clarify it more
if I understood your question correct you will need a random string which is generated in excel file?
if so then need to do VBA script function which is fired when file is used

1 Like


I tried this with OO calc, looks that string is every time different when it’s opened

Sub Run_at_open

    Dim ran As String
   ' ranString = RandomString(15)
   ' MsgBox "random string is: "+ranString  
   ' Print "This macro runs when this file opened"

End Sub

Function RandomString(Length As Integer)
'PURPOSE: Create a Randomized String of Characters

Dim CharacterBank As Variant
Dim x As Long
Dim str As String

'Test Length Input
  If Length < 1 Then
    MsgBox "Length variable must be greater than 0"
    Exit Function
  End If

CharacterBank = Array("a", "b", "c", "d", "e", "f", "g", "h", "i", "j", _
  "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", _
  "y", "z", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "!", "@", _
  "#", "$", "%", "^", "&", "*", "A", "B", "C", "D", "E", "F", "G", "H", _
  "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", _
  "W", "X", "Y", "Z")

'Randomly Select Characters One-by-One
  For x = 1 To Length
    str = str & CharacterBank(Int((UBound(CharacterBank) - LBound(CharacterBank) + 1) * Rnd + LBound(CharacterBank)))
  Next x

'Output Randomly Generated String
  RandomString = str

End Function


Uff. If you say so. So the only way to create random names is using code? Than i will take an advice with coding.

See @Timo_Kuisma1’s answer, it may work for you.

Can yuo reccomend which function will be usefull?

Thanks. Give plase the initial steps. I am not very aware of excel.


i will continue with this after my work day is over,
need to implement java code which will call the sheet and return random string

1 Like


this is hard to do without real excel app and with OO calc it’s wasted time, sorry :slight_smile:

1 Like


ok, got it to work in OpenOffice SpreadSheet application

this will generate random string between 10 to 20 chars

first download from here

latest stable binary
Version 1.2 , November 9, 2010jOpenDocument-1.2-jdk5.jar (Java 5)
and add it to the your Katalon project Drivers folder
then extract this .ods file to your Katalon project Include/spreadsheet folder
random_string.7z (5.7 KB)

And here the test code

import java.awt.Desktop

import org.jopendocument.dom.spreadsheet.Sheet
import org.jopendocument.dom.spreadsheet.SpreadSheet

String filename = System.getProperty("user.dir")+"\\Include\\spreadsheet\\random_string.ods";

Desktop.getDesktop().open(new File(filename));


def randString = getRandString(filename);
println randString

public static String getRandString(String filename) throws IOException {

    File f = new File(filename);

    //We'll assume everything we want is on the first sheet:
    Sheet sheet = SpreadSheet.createFromFile(f).getSheet(0);

    String cellText = "";
    cellText = sheet.getCellAt(0, 0).getTextValue();
    System.out.println("loadfile method read: " +cellText);
	return cellText


And in .ods file this will need to add
In .ods file
Tools → customize → Events (tab)
Open Document → Add Macro → select Run_at_open



Thank you !

I don,t have spreadsheet folder:

2020-04-13 16_51_06-Greenshot

And please tell me where to put this code that you give me :slight_smile:Thank you!