> ## Content Index
> Fetch the complete content index at: https://en.blog.themarfa.name/llms.txt
> Use this file to discover other available public pages before exploring further.

# How to add preview files in the browser
- URL: https://en.blog.themarfa.name/how-to-add-preview-files-in-the-browser/
- Published: 2020-04-22T08:00:26.000Z
- Updated: 2020-04-22T08:00:26.000Z
- Description: Often when searching for information or reading articles I want to see the contents of files, but download them completely uninteresting.
- Author: Konstantin Dokuchaev
- Tags: Chrome, Firefox, Peek

Often when searching for information or reading articles I want to see the contents of files, but download them completely uninteresting.

*This is autotranslated version of [this post](https://blog.themarfa.name/kak-dobavit-priedprosmotr-failov-v-brauzierie/).*

**Peek** adds built-in files preview when you hover over the link.

![](https://blog.themarfa.name/content/images/2020/04/image-148.png)

The extension works on almost any page and supports the following file formats:

- PDF, TXT, RTF
- Word(.doc .docx)
- Excel (.xls, .xlsx)
- PowerPoint (.ppt, .pptx)
- WebM, MP4, GIFV, OGG/OGV
- MP3 and WAV Audio
- JPEG, PNG, GIF, SVG, PNG, APNG, ICO, BMP
- documents hosted on Google Docs and Apple's iCloud.

For viewing office documents in the settings you can choose engine Google Docs and MS Office Online.

![](https://blog.themarfa.name/content/images/2020/04/image-147.png)

[Download for Chrome](https://chrome.google.com/webstore/detail/peek/bfpogemllmpcpclnadighnpeeaegigjk) | [Download for Firefox](https://addons.mozilla.org/ru/firefox/addon/peek-preview/)