diff --git a/packages/sheets-ui/src/index.ts b/packages/sheets-ui/src/index.ts
index b3a8231e4f..0e1a77f0fa 100644
--- a/packages/sheets-ui/src/index.ts
+++ b/packages/sheets-ui/src/index.ts
@@ -89,7 +89,7 @@ export { SheetPermissionOpenDialogOperation } from './commands/operations/sheet-
 export { SheetPermissionOpenPanelOperation } from './commands/operations/sheet-permission-open-panel.operation';
 export { SidebarDefinedNameOperation } from './commands/operations/sidebar-defined-name.operation';
 export { EMBEDDING_FORMULA_EDITOR_COMPONENT_KEY, RANGE_SELECTOR_COMPONENT_KEY, SHEET_VIEW_KEY } from './common/keys';
-export { getCellRealRange } from './common/utils';
+export { getCellRealRange, getViewportByCell } from './common/utils';
 export { useActiveWorkbook, useActiveWorksheet, useWorkbooks } from './components/hook';
 export { UNIVER_SHEET_PERMISSION_USER_PART } from './consts/permission';
 export { SHEET_UI_PLUGIN_NAME } from './consts/plugin-name';