What is a WZ file?
The .WZ file extension primarily represents a MapleStory Game Data File. Developed originally by Wizet and now managed by NEXON, these files act as data packages. They store important game assets like character graphics, audio files, map layouts, and internal game logic.
However, .WZ has multiple possible meanings. A .WZ file can also be a game data and mod package for the open-source game Warzone 2100. In this software, the file is simply a standard .ZIP archive renamed with the .WZ extension. Additionally, the AllMyWorkouts application uses the .WZ extension for workout data backup files, utilizing standard .GZIP compression.
How to open WZ files?
Because .WZ files can belong to different applications, you must determine their origin first. If the file is a Warzone 2100 mod package, you can rename the extension to .ZIP and open it with standard archive utilities like 7-Zip. If it is a backup from AllMyWorkouts, any tool compatible with .GZIP will extract the contents.
If the file is a MapleStory Game Data File, it uses proprietary formatting. Players and developers often use community-built programs like HaRepacker or WzRepacker to browse the internal structures and extract images or text.
Software and tools
If you are unsure where your file came from, viewer.online/wz can analyze .WZ files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
viewer.online/wz is useful for identifying, inspecting, and understanding .WZ files without installing software or dealing with compatibility problems. Whether your file is a MapleStory asset package, a Warzone 2100 mod, or a workout backup, this tool helps you discover its true format easily.