How to rename a Slack channel in 2 ways and give every group in your office a distinctive name

You can rename a Slack channel in two ways. In both cases, the name can't have spaces or periods, and needs to be less than 80 characters.

How to create a drop-down list in Excel to manage data and prevent mistakes

You can easily create a drop-down list in Excel to limit the values that can be entered in a column. Here's how to set one up.