What is an ENT file?
An .ENT file serves several different purposes depending on the software that created it. Primarily, it is a digitally signed submission file used by the Singapore CORENET system for building and construction project e-submissions. These files often use a certificate2 format to ensure data integrity.
In the scientific community, the Protein Data Bank (PDB) uses .ENT files to store macromolecular structure data. Game developers also use .ENT files. Engines like the Source Engine by Valve, REDengine by CD Projekt RED, and CryEngine use them to store entity templates, map definitions, and level data. Finally, standard web developers use .ENT files for XML or SGML external entity definitions.
How to open ENT files?
Because .ENT files have multiple possible meanings, the correct software depends on the file origin. You can open structural data files using the Discovery Studio Visualizer. Game entity files are usually plain text or JSON and open easily with a code editor or specific game engine tools. Secure archives require Entrust security software.
If you do not know the origin of your file, viewer.online/ent analyzes .ENT files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
File Conversion
Converting an .ENT file requires knowing its exact data structure. Text-based entity files or structural data can be converted to standard formats like .XML, .JSON, or .TXT. We recommend file conversion to sensible target formats on convert.guru to handle these transformations safely.
Summary
Because .ENT files use the known certificate2 format, viewer.online/ent can safely open and display them online, eliminating compatibility problems.