If you need a specific older version or want to download the binary manually without browsing the Apache mirrors, search for commons-io on MVNRepository. How to Add Commons IO to Your Project
Useful for reading and writing data in Little-Endian format, which standard Java sometimes struggles with. Security and Versions commons io jar download
Read an entire file into a String or List with one command: FileUtils.readFileToString(file, "UTF-8") . If you need a specific older version or