I might be helpful if you could give us more information to use.
For example, What version of RoboHelp are you using? (X5, 6, 7, 8, 9, 10)
RoboHelp HTML or RoboHelp for Word? (We might assume RoboHelp HTML, but you never know)
What have you tried so far? How have you tried getting the file into RoboHelp? I'm assuming you have tried because you said it has blown up twice. For that matter, what exactly do you mean by it "blowing up"?
Normally, if it's a single HTML page, I might advise to right-click in your Project Manager pod (assuming you are using RoboHelp HTML here) and choose Import. Then ensure you are filtering to HTML files and you navigate to and select the page you want.
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