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 item = items[i];
            if (item.getChecked()) {
                transferList.add(item.getData());
            }
        }
		transferElements = new PreferenceTransferElement[transferList.size()];
        int i = 0;
        for (Iterator iter = transferList.iterator(); iter.hasNext();) {
            transferElements[i] = (PreferenceTransferElement) iter.next();
            i++;
        }
        return transferElements;
    }
    /**
     * @param transfers
     * @return boolean
     */
    protected abstract boolean transfer(IPreferenceFilter[] transfers);
    
    /**
     * Check whether the internal state of the page is complete and update the
     * dialog
     */
    public void setPageComplete() {
        boolean complete = true;
        if (!determinePageCompletion())
            complete = false;
        super.setPageComplete(complete);
    }
    /**