NoteAway - NoteAway is the simplest, most convenient way to take quick notes on OS X.
Personal Knowbase - Can't find your critical notes when you need them?
TakeNote - A web-based note-taking app with GitHub sync and Markdown support.
ReCsvEditor - Csv / Tsv / Delimited file editor. Supports for very large Files.
Speechy - Speechy is an app by Twelve Stars Software that comes up with features to help you in reading text in a variety of different formats such as pdf, txt, EPUB, webpages, and many others.
LibriVox Audio Books Supporter - LibriVox Audio Books Supporter app comes up with an extensive collection of audiobooks through which you can search for your favorite book and listen to it in your native language right at your fingertips.