Files that contain the .toc file extension are most commonly associated with the Eudora email software application.
The TOC files that are used by this email program contain a table of contents that list the Eudora email messages that have been stored within a specific Eudora email folder. The email application's outbox, inbox, junk box and trash box all have their own TOC file, as do all of the other folders that have been configured in the user's email application.
When a user creates a new folder within the Eudora program, a new TOC file is created for that folder.
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