Fig. 1: Main page of the Spreadsheet feature
The link leads to a form to create a new spreadsheet (see Fig. 2). The "Title" and "Description" fields are only informative. "Class Name", "Header Rows" and"Footer Rows" affect the rendering of the sheet in the browser when being viewed. The class name is the name of the CSS style that will be applied on the table. The "default" style displays borders and places emphasis on the fields in header rows and footer rows.
The header and footer rows fields require a numeric value, which is the number of rows that should be considered as part of the header and footer. Most web browsers will repeat the header and footer rows on every page when printing a large table. In a table where the first row represents the column names, a "Header Rows" value of 1 would be recommanded.
Fig. 2: New sheet form