Java: Convert Excel to HTML (Complete Guide with Examples)

Introduction In modern web application development, presenting Excel-based reports as web-accessible content is a common requirement—whether for real-time online preview, system embedding, or cross-platform sharing. This guide provides a streamlined, production-ready approach to converting Excel files (.xls/.xlsx) to HTML in Java using Free Spire.XLS for Java (a free, lightweight library). No Microsoft Office installation is required, and the solution supports core use cases like full workbook conversion, targeted worksheet export, and inline image embedding—with clean, maintainable code. -- Environment Setup 1. Add Dependencies (Maven) Integrate the library into your Maven project by adding the following repository and dependency to your pom.xml : <repositories> <repository> <id> com.e-iceblue </id> <name> e-iceblue Public Repository </name> <url> https://repo.e-iceblue.com/nexus/content/groups/public/ </url> </repository> </repositories> <dependency> <groupId> e-iceblue </groupId> <a