The spreadsheet is designed in a format which is similar to the presentation of tidal diamond information on a chart.
Enter the range of tide for today (yellow box): the spreadsheet works out all the streams for that tide. The example above represents the Bristol Channel. This spreadsheet could act as a template to represent any table of tidal diamond information. Simply enter the relevant information from the chart into the spreadsheet.
The spreadsheet is an electronic version of the computation of rates graph.