Additional features, settings, or issues not covered by specific Microsoft Teams categories
Hi Tina, to add tabs in your channel, kindly follow below.
- Return to your team, choose the channel where you would like to display the tab.
- Select the :heavy_plus_sign: from the tab bar, and choose your tab from the gallery (in this case choose Excel).
- Choose what the tab will point to, and give the tab a name.
- Select Save and your tab will be added to the channel's tab bar.
Note that the Excel file must be uploaded to the Files tab first before you can convert it to a tab. Also below is an article about tab customization for your reference.
https://docs.microsoft.com/en-us/microsoftteams...
Thank you and have a great day!