A group of Microsoft Products and technologies used for sharing and managing content, knowledge, and applications.
Hi Mahalakshmi_883,
Could you confirm the following information?
1. Go to Internet Explorer and click Settings > "Manage add-ons" > select "All add-ons" from the left pane > make sure the following two add-ons are enabled:
SharePoint Spreadsheet Launcher
SharePoint Export Database Launcher
2. What is your Office version? (go to Excel > File > Account > capture a screenshot of the Office version)
3. What is your OS version?
Regarding "Is Data connectivity component" or SharePoint Foundation Component Services for MS office 365 has been released yet? ", I can't find any official article about when the "data connectivity component" or "SharePoint Foundation Component Services" were released in Office 365.
Regards,
James