How to Open EPUB Files
No matter what kind of EPUB files you get, DRM-protected ones from the iTunes Store or DRM-free ones from Google Books, normally you cannot open it on your computer if you do not have EPUB reader or third party apps installed. It is in the right situation since EPUB is a standard, open source for e-Books for portable devices, not like PDF, wherever you could open with Adobe Reader. In that case, if you get some EPUB books from your friends or download from the Internet, you cannot take a look at the really face of these EPUB books. Want to know the how to content goes before transfering the EPUB to your devices? Read on and get the answer. In the following, we're going to talk about how to open EPUB files on computer.
EPUBReader Whenever you're planning to look for a free tool to do something, the first thing you should consider is Web browsers, like Firefox, thousands of plug-ins are developed to make web browser powerful. EPUBReader is a plug-in for Firefox. You find the plug-in and add it to Firefox, then you can open EPUB file directly in Firefox.
Besides web browser, you can use different desktop e-Reader to open EPUB books. All these e-readers that could open EPUB books on portable devices are able to do the same task on desktop if they have desktop versions.
Stanza Be familiar with Stanza? It is commonly used on iPad, iPhone(iPhone 4S), iPod touch as e-reader. It also has desktop versions both for Windows and Mac. You can open EPUB files easily on it. Besides, what attracts me more is that it is also an e-book converter, which means it can convert the EPUB books to any other formats, like PDF, HTML, Doc and so on. Normally, EPUB is not compatible with Amazon Kindle. However, Stanza is able to convert EPUB to Amazon Kindle friendly format.
MobiPocket Reader is a commonly used e-reader that fully compatible with EPUB. It has the desktop for Windows. What's more, you can manage your e-books , like PDF, EPUB as well as Microsoft format properly with it.
There are online services to open EPUB books too, like Bookworm. Here the Bookworm does not mean these mini books for bedtime. It is an online service to read EPUB books.
Besides the above mentioned web browser plug-ins, desktop apps and online service, there are many other methods to open EPUB files. You can convert EPUB books to commonly use PDF format, Docs,etc.

