Bug 85506 [Import/Export] [Preferences] import preference wizard uses a "save" dialog.
I20050215-2300 The import preferences wizard provides a browse button to select the file you wish to import from. However, it creates a Save As dialog. When you select the file you wish to import you are greeted with a warning that the file will be overwritten. No such thing occurrs, and otherwise the import succeeds.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/wizards/preferences/WizardPreferencesPage.java
TableItem[] items = transfersTable.getItems();
        for (int i = 0; i < items.length; i++) {
            TableItem item = items[i];
            item.setChecked(bool);
        }
    }
    /**
     * Create the export destination specification widgets
     * 
     * @param parent
     *            org.eclipse.swt.widgets.Composite
     */
    protected void createDestinationGroup(Composite parent) {
        
        Composite destinationSelectionGroup = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.numColumns = 3;
        destinationSelectionGroup.setLayout(layout);
        destinationSelectionGroup.setLayoutData(new GridData(
                GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
        new Label(destinationSelectionGroup, SWT.NONE)
                .setText(getDestinationLabel());
        
        destinationNameField = new Combo(destinationSelectionGroup, SWT.SINGLE
                | SWT.BORDER);
        destinationNameField.addListener(SWT.Modify, this);
        destinationNameField.addListener(SWT.Selection, this);
        GridData data = new GridData(GridData.HORIZONTAL_ALIGN_FILL
                | GridData.GRAB_HORIZONTAL);
        destinationNameField.setLayoutData(data);