.CODASITE File Extension
What is a CODASITE file?
Website project file created by Coda, a program used for creating and publishing webpages; stores the list of Web files for the project (i.e., .HTML, .CSS, .JS, and other supported types); also includes the publishing information for the remote server.
When you create a new site profile in Coda, a CODASITE file is saved to the ~/Library/Application Support/Coda 2/Sites/ directory.
NOTE: Coda sites are managed through the Coda user interface and therefore CODASITE files are not manually opened by the user from the Mac Finder.