Google: How to Mark All Unread Emails as Read in Gmail

To mark all unread emails as read in Gmail, please follow the steps below:
1. When logged-in to your Gmail account, in the search box up top, type the following, then press the search button: is:unread

2. Click the down-arrow in the "select" button, then choose "all."

3. The emails on the page you're on should now be checked; however, to select all of your unread emails, you need to click where it says "Select all conversations that match this search." It will be centered, just above the top-most email, as pictured below:

4. Finally, click the "More" button, then click "Mark as read."

Microsoft: How to Add a Line Break in a Cell with Excel Formula

To add a line break in a cell, you need to add the following command into the formula:
& CHAR(10)

After that, you need to turn on wrap text for that particular cell.

For example:
=”Total amount is: ” & CHAR(10) & SUM(C1:C6)