Christian view of why there are so many similarities between Quran and Bible? Quran has a huge number of stories that originally came in Bible. To Muslims, this is almost a miracle that God revealed the same stories to prophet without the prophet knowing about it because he was illiterate (he could not read nor write). What is Christian view of where these stories come from?

Some of the stories the Quran taken from the Bible are:


Creation of Earth in Seven days (Bible). God created Earth in 7 days (Quran)
We are children of Adam and Eve (Bible). We are children of Adam and Eve (Quran)
Noah flood happened (Bible). Yes Noah flood happened (Bible)
Flood was global (Bible). Indeed it was global (Quran)
Noah ark set on a mountain (Bible). Noah ark set on a moutain (Quran)


There are many, many other stories some of which many are alteration from the Bible version like crucifixion of the Christ. Quran says Jesus Christ was raised up to heaven before his crucifixion.

What is the Christian view on all this? How did the prophet, Muhammad, know about this if it was not revealed by God.
It's not even a Christian perspective that's needed. It's a historical one. 

Christianity sprang from Judaism, and Judaism and Islam share common roots.  All three are known as "Abrahamic religions" because they trace their history to the covenant God made with Abraham in the Hebrew Bible. All of the events you listed were from before Abraham.

Talmudic tradition says that while Abraham’s son Isaac became the forefather of the Jewish people, the Islamic line is descended from Abraham’s other son Ishmael.

The origin of Islam, and the relationship between it and Judaism is easily researchable. Here's a good place to start: http://www.allaboutreligion.org/origin-of-islam.htm