Office 365 Files content

Job ID: 32647235

Budget: £20 – £250 GBP

I would like to access office 365 files content programmatically. You can write the code in any backend language. ideally .net but i am flexible.
The aim of this task is to be able to parse files content remotely and programmatically.
prove that this app works by:

1- create a new file of each type (excel, word, pdf, text) in OneDrive.
2- the web app should be installed on a different server from the tenant.
3- the web app should be able to request access and then access the OneDrive account and return the files' content. no formatting is needed for now.
4- extend the file content. i.e let the user on the web app change one word in a Word document that lives on the user's tenant.

styling is not required. use HTML, CSS, and JS wisely.
Related categories: .NET C# Programming ASP.NET Office 365