How can I access Microsoft Graph API for personal account to modify excel files stored in OneDrive though my own application.

Question

I am trying to develop a custom GPT that would automate filling of an excel file for my personal uses. For that I developed a custom action handler for the custom GPT. However, now I require access to microsoft graph api to do so, which mentions on the "Get Started" page that it is for business.

Answer 1

Good day Omar,

To access the Microsoft Graph API for personal accounts to modify Excel files stored in OneDrive through your own application, you can follow these steps:

1. Register your application with the Azure Active Directory (Azure AD) to obtain the client ID and secret.
2. Implement authentication in your application to obtain an access token from Azure AD using OAuth 2.0.
3. Use the access token to make requests to the Microsoft Graph API to access and modify Excel files stored in OneDrive.

For detailed guidance, you can refer to the Microsoft Graph documentation and resources available on the Microsoft Learn platform Working with Excel in https://learn.microsoft.com/en-us/graph/api/resources/excel?view=graph-rest-1.0. Additionally, you may find the "Excel Integration using Microsoft Graph API" presentation by Bailey Chauner (Aquent LLC) helpful, which demonstrates accessing Excel files through the Microsoft Graph API. Remember to ensure that your application has the necessary permissions to access and modify the files in OneDrive.

Hope this helps.

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