I have published a demo project in GitHub
This project provides a working Test Case script which
- reads an Excel file
./Employee.xlsx, print the data in the sheet into the console
- updates the sheet with additional rows of data, write the workbook into another Excel file
The source is here:
When I ran the Test Case I saw the following messages in the console:
2022-01-14 11:58:27.083 INFO c.k.katalon.core.main.TestCaseExecutor - START Test Cases/XLSXReaderWriter 表1 ID NAME SALARY DEPARTMENT MANAGER 1.0 John 70K IT STEVE 2.0 Graham 80K DATA Carl 3.0 Sodhi 60K IT Ram 4.0 Ram 100K IT Alex 5.0 Carl 150K DATA Alex 6.0 Steve 130K IT Alex Writing into ./Employee.out.xlsx 2022-01-14 11:58:30.193 INFO c.k.katalon.core.main.TestCaseExecutor - END Test Cases/XLSXReaderWriter
The Test Case script calls the API of Apache POI directly. This script aims to demonstrate a simple but working example how to use the POI API in Katalon Studio.
About the POI API, there are a lot of resources. So you should search and find articles that help you learn it more.
The latest verion of Apache POI is v5.0.x, but Katalon Studio v8.2.0 bundles fairly old version of Apache POI: 3.17. You should note this version difference, and mind not to be confused.
You would need to see the Javadoc of POI v3.17 frequently.
How I made it
The source code is originally published by vektorwebsolutions.com at the following site
The original was written in Java. I convert it into Katalon Studio’s Test Case script in Groovy.
I modified the code just slightly as I found a few issues to be fixed.