Banks that have made the leap to Microsoft's cloud-based office productivity software, Office 365, will want to check out the company's Office 365 app in the iTunes Store, which made its debut Thursday.

Office 365, which requires a subscription to Office 365 Home Premium or Office 365 ProPlus, allows users to access, view and edit Microsoft Word, Excel and PowerPoint documents. Here's a demo of the new app.

Marine Bank & Trust and DHCU Community Credit Union are among the financial firms using Office 365 for their enterprises' email services. Office 365 competes with Google Apps.