I wanted to share an extension I recently published, called Peek. As it says in the title, Peek allows you to preview file download links before you download them. Just hover over a link to a supported file, and an interactive preview appears!
Peek supports previews for just about every type of file you would download:
* PDF and RTF Files
* Word Documents (.doc, .docx)
* Excel Documents (.xls, .xlsx)
* PowerPoint Presentations (.ppt, .pptx)
* WebM, MP4, and OGG/OGV Video
* Flash video files (.flv, .f4v)
* MP3 and WAV Audio
And the best part? [Peek is open-source](https://github.com/corbindavenport/peek) under the GPLv3 license. You can grab it at the [Chrome Web Store](https://chrome.google.com/webstore/detail/bfpogemllmpcpclnadighnpeeaegigjk).
Let me know what you think, and any suggestions you might have!