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Use the Fieldname modifier to insert database column headings in a spreadsheet. For example, if template cell C5 contains
%%=Products.#2(fieldname)
ExcelWriter will insert the name of column 2 in C5.

If a data marker includes the Uppercase modifier, all text values in the data marker column or cell will be displayed in uppercase. If a data marker includes both the Uppercase and Lowercase modifiers, the last will be applied to cell values.

If a data marker includes the Lowercase modifier, all text values in the data marker column or cell will be displayed in lowercase. If a data marker includes both the Uppercase and Lowercase modifiers, the last will be applied to cell values.

By default, if a data marker's data source name or column name is not bound to a data source in the script, an error will occur. If a data marker contains the Optional modifier, and the data marker is not bound by name to a data source, ExcelWriter will discard the data marker in the generated spreadsheet and will not throw an error.
This modifier makes both a data marker's data source and column optional. For example, for this data marker:
%%=Orders.OrderID(Optional)
If either the data source "Orders," or the column "OrderId" does not exist, the data marker will be removed without error.

The Preserve modifier forces Excel to always insert a string value as a string, instead of attempting to convert the value to a number.

The Convert modifier forces Excel to always try converting a string to a number. If the conversion fails, the value will be inserted as a string.

The Continue modifier is used when the user wishes to bind data from a single data source into multiple worksheets. If the data source for the ExcelTemplate uses a forward-only cursor, such as with a DataReader, the second worksheet with the same data marker will automatically start from the row after the last row in the first worksheet. If the data source is scrollable, however, the second worksheet with the same data marker will start from the first row of the data source. The Continue modifier tells the ExcelTemplate object to start from the row after the last row in the previous worksheet when a scrollable data source is being used.

The Hide modifier removes the field from the spreadsheet after data is bound to the spreadsheet. This is usually used to allow you to remove field values if they are already expressed in a Group header or footer using the %%value() marker. Since the data are removed on the server side, they will not be evaluated in any formulas on the spreadsheet.