1. Open your browser and go to outlook.office.com
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2. Now click in the URL bar and add /inclientstore after /mail.
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3. The link should look like this: https://outlook.office.com/mail/inclientstore
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4. Wait a few moments until the screen with the add-in appears.
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5. Click on "My add-ins".
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6. Click on the three dots next to FileCap.
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7. Select remove to uninstall the add-in.
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Due to Microsoft's synchronization time, it may take up to 24 hours for the add-in to be removed from Outlook.

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