What is a TOC file?
A .TOC file stands for Table of Contents. It is a data file that contains an index, metadata, or layout information for other files. Many different programs use .TOC files for different purposes. Electronic Arts uses them in the Frostbite Engine to manage game assets. Blizzard Entertainment uses them in World of Warcraft to load user interface add-ons. Other tools, like the LaTeX typesetting system or CD authoring software like CDRDAO, use .TOC files to organize document chapters or audio tracks.
How to open TOC files?
Because .TOC files from different programs are not compatible, you must use the correct software. You can open a World of Warcraft .TOC file with any standard text editor like Notepad++ because it is a simple text file. A LaTeX .TOC file is also plain text. However, .TOC files from the Frostbite Engine or Microsoft Windows Superfetch are usually compiled binary data and will look like random characters in a text editor.
Best practices and troubleshooting
Do not delete a .TOC file if you do not know its purpose. Deleting a .TOC file can break game add-ons, corrupt document compilations, or prevent CD images from loading correctly. If your computer asks you to choose a program to open a .TOC file, always try a text editor first to see if the contents are readable.
Software and tools
Common software for .TOC files includes Notepad++ or Visual Studio Code for game add-on editing, TeXworks for LaTeX documents, and ImgBurn or CDRDAO for disc images.
Summary
Because a .TOC file has multiple possible meanings, it is difficult to know which program to use. viewer.online/toc can analyze .TOC files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available. viewer.online/toc is useful for identifying, inspecting, and understanding .TOC files without installing software or dealing with compatibility problems.