What does"file yesterday's correspondence" mean ?
This is the full sentence.
She filed yesterday's correspondence.

Does that mean she received and reply the emails ?

Question

What does"file yesterday's correspondence" mean ?
This is the full sentence.
She filed yesterday's correspondence.

Does that mean she received and reply the emails ?

Answer

It sounds like these were hard copies (paper) letters, memos, and the like.  She put them in the file cabinet so that people could find them later.

Answer

To put things away in an organized way (e.g., in a file cabinet).