Hi @St
There is no out-of-the-box way to get data from a CSV table in Teams, you need to use PowerAutomate to achieve this.
You need to use PowerAutomate to parse the data in the CSV table and extract the contact column. Here's how to get the data in the CSV table and extract the contact column (if your file is saved in Teams, the file is essentially saved in OneDrive).
After obtaining the data, you only need to add an action called Post message in a chat or channel in the last step, and use the contact column parsed in the previous step in the recipient field.
If you don't know enough about the use of PowerAutomate, in order to better help you, you can also post in the PowerAutomate community for further help.
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