Why do Higher Interest Rates attract Foreign Investors? I am reading the following Article at Investopedia which states


  Generally, higher interest rates increase the value of a given
  country's currency. The higher interest rates that can be earned tend
  to attract foreign investment, increasing the demand for and value of
  the home country's currency. Conversely, lower interest rates tend to
  be unattractive for foreign investment and decrease the currency's
  relative value.


I do not understand why Higher Rates would attract Foreign Investors, therefore unable to see how they can profit from it.

How does this work, and what are some of the common ways Foreign Investors use this to their advantage?
The answer lies in this part of your posted quote: 

"The higher interest rates that can be earned tend to attract foreign investment, increasing the demand for and value of the home country's currency."

Foreign investors would be attracted to the higher interest rate if they are able to receive a better return on their investment than they would get from their local market. 

It sounds like your confusion might arise from the fact that a higher interest rate would mean the borrower has to pay out more in interest. Your quote refers to investors, the party receiving the higher interest payments.

A common way in which foreign investors would use higher interest rates to their advantage is by borrowing money locally at a lower rate and investing it in foreign markets at a higher rate. Profits would be calculated based on the difference in interest on the money (in a simplified situation). A more realistic scenario would also  include exchange rate fluctuations and other variables.