When data is added to ArcGIS it won't have any pre-defined symbology.
You can either set up your own symbology for each layer or, if available,
you can apply style files that have previously been created. For
information on setting up your own symbology please refer to the applying
basic symbology topic.
Setting up symbology can be time consuming; an alternative is to make
use of a pre-defined symbology definitions.
Bring up the Style Manager window by selecting: Customize >
Style Manager:
In the Style Manager window press the Styles...
button:
Press the Add Style to List...
button in the Style References window:
Browse to the .style file you wish to use and press Open
Ensure the checkbox is selected against this file and press OK
Close the Style Manager
window
Bring up the Properties
window for one of the layers and go to the Symbology
tab
Under the Categories heading
(on the left hand side) select Match
to symbols in a style
In the Value Field drop
down select the appropriate attribute that you will use to match to
stiles in the .style file, in this case we're using the attribute
called 'description'
in the Match to symbols in Style
field use the drop down to select the relevant style file, in this
case we're using a file called MarineThemes.style
Press the Match Symbols
button
Press OK
Your data should now be drawn using the style from the .style
file