Compiling error

I have an Arduino Micro on windows 7 64 bit. When I run a program from examples i.e. led blink it runs
fine. When I copy and paste a sketch from a program online I get a compiling error. I’m brand new to Arduino and have looked on line but no help there. I’m trying to run the BH 1750 light meter. Does some one know were I can download this as a file rather then cut and paste? The only files I have found are
.rar files and my computer wont open it. Any help? Thanks!

To open rar files you can dowload a program such as 7zip or Winrar.

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The error says "Error Compiling". No other information.

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Spycatcher, I'm using 1.6.3 ide the link is micro4you.com is for sale | HugeDomains
It has the code listed on that page but is a rar file and cant get it to open.

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BH1750_Sample.zip (452 KB)