Question Regarding Word addin in Online Office365

Hi,

I would like to ask you a question which I am unable to find answer anywhere : - I have installed add in to Microsoft word(Office 365) desktop application. Now when I try to open my word file on cloud like OneDrive I am not able to see that particular add-in.

Can you please help me how can I use/access that add in cloud/online office 365?

Thank you for your time 🙂