How to install and run Cobra.

Hi,
I am literally so lost. I don't know how or where to run this language. I clicked the zip to download but those are just folder files explaining how to write code. I need to know how to donwload and run.?? Like does is use Eclipse, or Visual Basic? Please someone help.
I am literally so lost. I don't know how or where to run this language. I clicked the zip to download but those are just folder files explaining how to write code. I need to know how to donwload and run.?? Like does is use Eclipse, or Visual Basic? Please someone help.