Final answer:
Archiving a Slack channel makes it no longer visible in the list of active channels, but the messages can still be accessed and searched for future reference.
Step-by-step explanation:
When you archive a Slack channel, the channel is no longer visible in your list of active channels, but it can still be accessed and searched for archived messages. Archiving a channel is useful for when a channel is no longer active or relevant, but you still want to preserve the conversations and history for future reference.
To archive a Slack channel, you can click on the channel name, then click on the gear icon, and select 'Archive this channel'. You can also use the command '/archive' in the channel.
Archiving a Slack channel is different from deleting it, as archived channels can still be accessed and their messages can be viewed, while deleting a channel permanently removes it and its messages.