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TarasNehrov's avatar
TarasNehrov
Copper Contributor
Jul 06, 2023

How to hide file extensions in outlook

Hi there. 
I need to hide somehow file extension not only in File Explorer, but in Outlook also. 
When composing new email I insert attachment via Attach File. In this window file extensions are hidden. 
But when document is attached to the email itself, it is displayed with the full name, including .extension.

I`ve tried to find any related to it option in Outlook itself, but had no luck.

P.S. 

 

11 Replies

  • Rahul-kumar's avatar
    Rahul-kumar
    Copper Contributor
    Hi Taras, Hide File Extensions in Windows File Explorer:

    Open File Explorer.
    Go to the "View" tab in the ribbon at the top.
    In the "Show/hide" section, uncheck the "File name extensions" option.
    This will hide file extensions in File Explorer.
    Change File Extension Visibility in Windows Settings:

    Open the Windows Settings by pressing the Windows key + I.
    Click on "Personalization," then select "File Explorer" from the left sidebar.
    Under the "Advanced settings" section, toggle off the "Show file extensions" option.
    This will globally hide file extensions in Windows, including in Outlook.
    Please note that changing these settings will hide file extensions system-wide, not just in Outlook.
  • NikolinoDE's avatar
    NikolinoDE
    Gold Contributor

    TarasNehrov 

    In Microsoft Outlook, the display of file extensions for attachments in the body of an email is controlled by the recipient's email client settings and not by the sender. However, you can make changes to how file extensions are displayed in the Windows File Explorer, which can affect the attachment display in Outlook.

     

    To hide file extensions in Windows File Explorer, follow these steps:

    Open File Explorer by pressing Windows Key + E.

    Click on the "View" tab in the File Explorer ribbon.

    In the "Show/hide" section, uncheck the "File name extensions" option.

    By disabling the display of file extensions in File Explorer, it may affect how file attachments are shown in Outlook for the recipient if they have the same settings.

     

    It's important to note that the appearance of file attachments in the recipient's email client is ultimately determined by their email settings and not by the sender. Therefore, you cannot directly control how file extensions are displayed in the recipient's Outlook client.

     

    Additionally, hiding file extensions can potentially introduce security risks, as it becomes more difficult for recipients to identify potentially malicious file types. It's generally recommended to leave file extensions visible for security reasons.The text and the steps were created with the help of AI.

     

    My answer is voluntary and without guarantee.

     

    Hope this will help you.

    • TarasNehrov's avatar
      TarasNehrov
      Copper Contributor
      Thank you for the response, but steps you provided don`t work - as I`ve mentioned that:
      - extensions are already hidden in File Explorer;
      - I`m interested in hiding extensions on the composing email stage.
      • Victor_Ivanidze's avatar
        Victor_Ivanidze
        Bronze Contributor
        No way. May I ask why do you need it - a bit strange requirement IMHO.

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