Hello @Akhil
Thank you for reaching out to Q&A forum!
Based on my review, I would like to clarify that Microsoft Teams does not currently support creating tables directly within chat.
Besides, to support you with your concerns, please provide more details about your needs so I can assist you better. I also need to understand exactly where you created these tables, so I know their formats when pasted into Teams chat.
Word Table
Excel Table

I can paste two types of tables in Teams chat as shown in the image below. If you encounter issues when pasting a table from another platform, you may first paste it into Excel or Word before pasting it into Teams chat.

Finally, depending on your needs, you can take screenshots of the table and paste them into the chat. This method will keep the table in its original format.
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