Add support for the OneDrive document interaction graph API, specifically for excel documents as an option to add support for excel as a data source.

currently the only options are to use a 3rd party service to convert to a json at cost or use google sheets.

if you do not wish to use either of these services you are stuck not being able to access data from csv/xlsx files.

https://docs.microsoft.com/en-us/graph/api/resources/excel?view=graph-rest-1.0