FolderSizes: File Extension Researcher

FolderSizes has a built-in file extension researcher tool that can help you to understand the origin and usage of specific file types.

File extension researcher

Right-click a file anywhere within FolderSizes and select Research File Extension to access this window. A listing of potential application / functional associations is provided. Click the Research Online button for additional information.

File extension database browser

You can also browse the entire file extension research database. The browser window uses alphabetical grouping.

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