Spring Full-Stack Practical Cases

Jun 16, 2026 · Backend Development

Avoid OOM: Stream Massive Excel Files with Minimal Memory Using Excel‑Streaming‑Reader

This article explains how to prevent out‑of‑memory errors when importing huge Excel files in Java by using the open‑source excel‑streaming‑reader library, showing Maven setup, streaming code examples, memory‑saving configurations for shared strings and comments, and tips for handling extremely large workbooks.