Bug 134740 [Wizards] PDE product wizard is not obvious to use.
see attached image. The wizard for creating a new product opens with a file name initialized to ".product" which is selected. Generally this would imply that this is a good default but if you start typing you will replace the text with something else that is also a good name. If you require an extension for a file you should add it yourself like the "Export Archive" wizard.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/WizardNewFileCreationPage.java
if (numSegments > 2
						&& !root.getFolder(path.removeLastSegments(1)).exists()) {
					
					
					
					for (int i = numSegments - 2; i > 0; i--) {
						IFolder folder = root.getFolder(path
								.removeLastSegments(i));
						if (!folder.exists()) {
							folder.create(false, true, monitor);
						}
					}
				}
				fileHandle.create(contents, false, monitor);
			}
		} catch (CoreException e) {
			
			if (e.getStatus().getCode() == IResourceStatus.PATH_OCCUPIED) {
				fileHandle.refreshLocal(IResource.DEPTH_ZERO, null);
			} else {
				throw e;
			}
		}
		if (monitor.isCanceled()) {
			throw new OperationCanceledException();
		}
	}
	/**
	 * Creates a file resource handle for the file with the given workspace
	 * path. This method does not create the file resource; this is the