Can I access my Office 365 or OneDrive documents from multiple devices?

Yes. You can access your documents from any device by using the dedicated OneDrive app, or any major internet browser. 

Office 365

Why do I need a domain with Office 365?
What is Microsoft Office 365 and how do I buy it?
Can I access my Office 365 or OneDrive documents from multiple devices?
How do I get in touch with an AppHelp expert for my Office 365 installation and set up
Does Office 365 work on any device?
Why should I use AppHelp Office 365 migration services?
Why should I use the AppHelp Office 365 installation and set up service?
What’s OneDrive?
What happens and when during the AppHelp Office 365 email migration process?
What happens if I don’t have a domain and don’t want to buy as part of my Office 365 purchase?
Is it secure to store my confidential business data in OneDrive?
Where can I find out about Office 365 security and compliance?