Each or every

English as a Second Language English Vocabulary, Grammar and Idioms
1

Which of the following is correct?

Separate files are there for each episode.

or

Separate files are there for every episode.

or

Any other alternative?

Thanks in advance.

2

‘Each’ and ‘every’ are interchangeable in that usage.

If you are speaking of a particular location, either of your sentences is acceptable.

If you aren’t speaking about location, you would definitely need to make adjustments for the more common form:
There are separate files for each episode. / There are separate files for every episode.