File Sharing Problems

How to Fix Excel Showing Guest Contributor Instead of Collaborator Initials

Phi Hung Vo Oct 15, 2026 869 views

Question details

Users want to know how to display a collaborator's actual name or initials instead of 'Guest Contributor' in a shared Excel file, and how to manage individual edit or view permissions.

How to Fix Excel Showing Guest Contributor Instead of Collaborator Initials

Product: Microsoft Excel, OneDrive
Device & OS: not provided
Scenario: Collaborating on a shared Excel workbook where multiple users are editing or viewing simultaneously.
Observed behavior: Collaborators appear as 'Guest Contributor' or 'GC' instead of displaying their actual Microsoft account initials or names in the co-authoring view.

Before you start

Ensure you are the original owner of the shared Excel file and have access to the OneDrive or SharePoint account where the file is hosted.

Solution 1Recommended

Share the Workbook with Specific People via OneDrive

Changing the sharing link from 'Anyone' to 'Specific people' forces users to log in, allowing Excel to display their actual initials and identity.

When a file is shared using an 'Anyone with the link' option, Excel cannot verify the user's identity, resulting in the generic 'Guest Contributor' label. By restricting the sharing settings to specific people, the system requires them to sign in, which retrieves their Microsoft account details.

Locate the file in OneDrive

Open OneDrive in your web browser and find the shared Excel file you want to manage.

Open Manage Access

Click the three dots (More options) next to the file name and select 'Manage access'.

Remove anonymous links

If there is an 'Anyone with the link' sharing option active, delete it to prevent anonymous access.

Share with specific users

Click 'Share', select the 'Specific people' option, enter the email addresses of your collaborators, and send the invite.

Share the Workbook with Specific People via OneDrive

Identity Displayed: Once your collaborators access the file via the new specific link and log in, their correct initials will appear in the Excel co-authoring interface.

Solution 2

Customize Individual Edit and View Permissions

Adjust access levels so some specific users can edit the file while others are restricted to viewing it.

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Experience smooth real-time document collaboration without complex permission hurdles. WPS Office is a free, lightweight suite that fully supports Microsoft Excel formats while offering an intuitive co-authoring environment through WPS Cloud.

1. Download WPS Office: Download and install the free WPS Office suite on your device.
2. Open your workbook: Open your existing .xlsx workbook directly in WPS Spreadsheet.
3. Share and collaborate: Click 'Share' to upload the file to WPS Cloud and easily invite collaborators with specific view or edit permissions.

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Frequently Asked Questions

Why does my shared Excel file say 'Guest Contributor'?

This happens when the workbook is shared using an 'Anyone with the link' setting. Because users do not need to sign in to open the file, Excel cannot identify them, defaulting their display name to 'Guest Contributor'.

Can I manually change the 'Guest Contributor' name in Excel?

No, you cannot manually edit the name or initials of a Guest Contributor from within Excel. The display name is strictly tied to the collaborator's signed-in account profile and the sharing link type.

How do I stop anonymous users from editing my shared Excel file?

Go to OneDrive, open 'Manage access' for the specific file, and delete the sharing link that grants access to 'Anyone'. You can then create a new link restricted to 'Specific people'.

Does changing someone's permission from Edit to View change their displayed initials?

No, changing a user's permission level only affects their ability to modify the file. Their displayed identity relies entirely on how the file was shared with them and whether they are logged into their Microsoft account.

Document & File Issues