Sorry for the lack of context.
To open the file in RoboHelp:
- Open the Project Set-up pod.
- Expand the Screen Layouts tree item.
- Expand the tree item for the screen layout you want to modify. If you have multiple screen layouts for different devices, you need to modify each one separately.
- Double-click the search results item under that screen layout. Different layouts seem to name them differently, but they are generally called "Search Results" or "search results page", so you should know pretty quickly which one it is.
- Edit the file as you would any topic file. You can switch between Design view and HTML view as you normally would.
You can also access this file directly and modify it in a text editor like Notepad or Notepad++. The file is located in: [Project Folder]/!ScreenLayout!/[Layout Name]/SearchResults.slp. The actual file name might vary by layout, I'm not sure, but it should be fairly obviously named, and always a .slp filetype.
Hope that helps!