Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select “New Channel” from the drop-down menu. How to create a business channel on Telegram? (Tutorial) It’s easy to create a Telegram channel via desktop app or mobile app (for Android and iOS): Today, we will address Telegram channels and how to use them for maximum benefit. The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar.
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