Rubymine 7.0.1 : I have a CSV file that I have attached to this question. When I open it in Rubymine it does not show up in the CSV Table view described in the documentation. The "Database Tools and SQL" plugin is installed, there are no blank lines in the file, and *.csv is associated with text files. (All of these are reasons that the doc says that the Table View might not show up.)
The only additional thing that the doc said might prevent the Table View from being used was that the number of lines or columns in the CSV file might not be sufficient. I don't know if this is the problem because I can't find a setting for that.