'How to change logo of my add-in/taskpane on the menu bar

I have built my Excel add-in/taskpane using the template of Microsoft. Everything works fine. However I am trying to change the default logo of the sample add-in and replace the name "Contoso" with my add-in name (in pictures)

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I have removed all original images that came with the sample add-in template, delete all text containing the word "Contoso" and "Show Taskpane", however the logo, the word Contoso and the phrase "Show Taskpane" are still there. Really appreciate any help.



Solution 1:[1]

Actually I test/sideload my add-in everything works.

https://docs.microsoft.com/en-us/office/dev/add-ins/testing/sideload-an-office-add-in-on-ipad-and-mac

Solution 2:[2]

Add-ins are often cached in Office for Mac, for performance reasons. Normally, the cache is cleared by reloading the add-in.

You can clear the cache by using the personality menu of any task pane add-in.

  • Choose the personality menu. Then choose Clear Web Cache.

  • You can also clear the cache manually by deleting the contents of the ~/Library/Containers/com.Microsoft.OsfWebHost/Data/ folder. If that folder doesn't exist, check for the following folders and if found, delete the contents of the folder:

  • ~/Library/Containers/com.microsoft.{host}/Data/Library/Caches/ where {host} is the Office application (e.g., Excel)

  • ~/Library/Containers/com.microsoft.{host}/Data/Library/Application

  • Support/Microsoft/Office/16.0/Wef/ where {host} is the Office application (e.g., Excel)

  • ~/Library/Containers/com.microsoft.Office365ServiceV2/Data/Caches/com.microsoft.Office365ServiceV2/

  • ~/Library/Containers/com.microsoft.Office365ServiceV2/Data/Library/Caches/com.microsoft.Office365ServiceV2/

Solution 3:[3]

Also try upgrading the version <Version></Version> in your manifest. Especially when deploying your manifest, this may fix cache issues

Sources

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Source: Stack Overflow

Solution Source
Solution 1 VII
Solution 2 Eugene Astafiev
Solution 3 Burak