How to Generate an Excel Report in a Spring Boot REST API with Apache POI and Kotlin

1 · freeCodeCamp.org · Dec. 8, 2020, 2:01 a.m.
In this article, I would like to show you how to generate Excel reports in the .xls and .xlsx formats (also known as Open XML) in a Spring Boot REST API with Apache POI and Kotlin. After finishing this guide, you will have a fundamental understanding of how to create...