Hello Dylan Holtrey
Welcome to Microsoft Community.
I am aware of the present situation is that you have a Marco-Enabled Workbook but appears "Error window: "You are attempting to save a file type (Excel 2007)".
Could you please share with me some pictures of your Trust Center. This could let me see how these options checked. Based on the description in the following Microsoft Learn article, please try clearing these checkboxes as shown below:
- Error message in Office when a file is blocked by registry policy settings - Office | Microsoft Learn
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Additionally, see the answers from OssieMac's reply in the following thread, **** click here:
- By selecting open, Excel blocks this file type or opens in Protected View
- By selecting Save, Excel prevents saving in this file type.
If clearing the checkbox does not apply to your problem, we may need to modify Group Policy as described in the second step of the Microsoft Learn article (Based on the version of Windows Pro)
Feel free to post back if any updates.
Chandy |Microsoft Community Support Specialist