Hi @Mytoast Admin ,
Thanks for reaching out.
You can refer to the following links in order to get your use case resolved.
https://learn.microsoft.com/en-us/answers/questions/938993/have-to-upload-files-into-sharepoint-online-using (reading/accessing the specific file in sharepoint)
https://learn.microsoft.com/en-us/graph/api/resources/excel?view=graph-rest-1.0 (Working with excel using graph api)
https://learn.microsoft.com/en-us/graph/api/resources/sharepoint?view=graph-rest-1.0
(working with SharePoint sites using graph API)
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