Solution:
Navigate to setup>Imports/Exports>Import csv record.
import type as we are making changes to item in the inventory select item, record type Inventory item.
CSV Files:
To create csv file navigate to lists>search>saved search
create a new saved search and in filters add Display in website, subsidiary, inactive and save In the result columns select the fields need to display.
Then download the Excel sheet from the saved search. And go item navigate to webstore from the field out of stock behavior select the field Id. and past in the excel sheet header and select the option as need to in excel sheet.
And convert the excel to Csv format and upload the csv file click next and select UPDATE in the options and click next and save .After completing check status of completion for the upload 100% complete. Then do cache invalidation and check the item updates will be changed