Re: Migrate SharePoint 2007 lists data with attachment to Office 365

Hi Jyoti,

There is an officially recommended method. Please see:

http://blogs.technet.com/b/lystavlen/archive/2011/10/10/how-to-back-up-office-365-sharepoint-online-data.aspx

However, if you would like to use a more automated tool to migrate SharePoint Online site, there are some useful third-party tools. Please refer to the information mark provided in the following thread:

http://community.office365.com/en-us/forums/154/t/27107.

Thanks,

Keats Ge