Barty is conducting an incident investigation and needs to determine the author of a Microsoft Office document. Which source could provide him with such information?

Microsoft Office stores various useful details such as the file creator's name, editors, creation and modification dates, among other information in the file metadata of each Office document. Barty can easily access this information by opening the Office document or by employing a forensic or file metadata tool to examine it. The file name might contain the creator's name, but only if the creator added it. There is no log maintained by Microsoft Office, and the Windows application log does not contain such information.