@Steven Fayers
Could you please share us a sample to help me understand your issue better?
Currently, I suggest you go to Excel > Options > Formulas > Working with formulas section, check the box of "R1C1 reference style" > OK.
Then you would find the columns are also marked by numbers.
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Update -------------------------
If this issue is about Graph API, which is more related to development, I would suggest you post a new question on the following forum. As we are mainly responsible for general issues of Excel clients.
Office developer community
Thanks for your understanding.
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