What is a robots.txt file and how do I add them to my website?

What is a robots.txt file and how do I add them to my website?

A robots.txt file tells search engine crawlers which URLs the crawler can access on your site.
This is used mainly to avoid overloading your site with requests; it is not a mechanism for keeping a web page out of Google.

Adding these files is something Arosoftware will need to do 

Please email support@arosoftware.com with the relevant files and we will add them to your website