Hi Richard,

Sure we can help you out in this regard.

You can add this css code in the Customize->Additional CSS

.header-wrapper.clearfix {
padding: 0 25px;
max-width: 1250px;
margin: 0 auto;
background: #fff;
}

.logo-text {
text-align: left;
}

This will make your logo to the left.

Specific excerpt is not included in this theme so unfortunately you can’t do it.

Thanks