purpose of the json files stored in the Aggmru folder

Max 21 Reputation points

Hi there,

I believe these json files contains reference to Office documents opened from a cloud storage and if its shared. However, I could not find any documentation to this topic confirming this assumption.

Can anyone help me to point to the right direction?

path: C:\Users\%UserName%\AppData\Local\Microsoft\Office\16.0\aggmru*.json

Office Management
Office Management
Office: A suite of Microsoft productivity software that supports common business tasks, including word processing, email, presentations, and data management and analysis.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Emily Hua-MSFT 27,546 Reputation points

    Hi @Max

    Welcome to Q&A forum ~

    So far, I do not find any relevant documentation either, but i agree with your judgment.

    On my test environment, I find one PC with this folder aggmru.
    If I locate to HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\Identity\Identities, I find that *_LiveId subfolder has the same "drive id" as the one folder under aggmru.

    According to this link (Delete the Office Profile, and credentials, associated with a removed logon identity), the Identities registry entry is about Office profile and credentials.
    Some accounts of cloud service ( Such as OneDrive and SharePoint account) that you signed in Office will be recoreded in *_LiveId subfolder registries.

    Then I open one json file under aggmru, I find there is some information (Such as URL, Title, File Size and etc) related to the shared file I opened from other OneDrive users or my own OneDrive.

    Hope the information is helpful.

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  1. Max 21 Reputation points

    very helpful @Emily Hua-MSFT , best Steve (aka Max-1185)

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