Step_1. Make sure you haveWINZIP .
Step_2. Go to the file you saved and open it.
Step_3. This Window appears.
Step_4. Hit the button marked my the "1".
Step_5. This windows now appears also.
Step_6. Follow the number's. (2)click "desktop". (3) create a folder called "tides_d",now click on that new folder.
(4)Finally click "Extract" and all the files will be placed in your new folder.
Step_7. Go to the folder you have created on the desktop,and look for this HIGHLIGHTED icon in there.
Step_8. Double click this and you are presented with this.
Step_9. Click the options Drop down,then click LOCATION.
Step_10. You are now here.
Step_10.By changing the drop down's (in numerical order) to "Europe" and then "Ireland" you now have the Tidal References for many location's in Ireland.