Open EOF File
EOF files, or End Of File files, are not typically something a casual user will interact with. These are meta signals, essentially markers to indicate that no further data should be read from a file stream. Essentially, they are a way to tell a software program that the program has reached the end of the file, and it needs to stop reading.
Use in Programming
In programming, this can be incredibly useful. EOF is often employed in languages like C and its derivatives, to control data flow. For most programming languages, it isn't something programmatically handled, this is abstracted by the language itself. For programmers curious about how to handle EOF flags in languages like C, this Quora thread provides a great starting point.
EOF Files from Software
In some instances, certain software produces EOF files as output. For example, software like ExtendScript, an Adobe scripting language, uses .eof files. These files can be edited with simple text editing software, but are intended to be read and executed by tools like ExtendScript Toolkit. More about this toolkit can be discovered here.
EOF File Important Information
When dealing with EOF files, it's important to understand the context. An EOF marker within a file is not something you can or should edit directly. It is placed by the operating system or the programming language itself and is meant to internally handle data flow. If you've received an EOF file from a piece of software, you can open it with a text editor, but be aware that the contents will be intended for the software that created it.