This article teaches you how to restore a channel that was archived on Slack.
Steps
Step 1. Open Slack
It is located in the "Applications" folder on Mac and in the menu
on Windows.
Step 2. Click on the section titled Channels
It is located in the left side column and opens a window called "Browse Channels".
Step 3. Search for the channel you want to restore
To do this, type the channel name in the search box, then press Enter.
Another way to find archived channels? Click on the "Show" drop-down menu and select "Archived Channels"
Step 4. Click on the blue arrow
It is located to the right of the channel name. Opens the archived version of the channel.
Step 5. Click on the gear icon
It is located at the top right and allows you to view a list of options.
Step 6. Click on Un-archive
The channel will be available again to all users who could previously access it.