SpreadsheetConverter supports references between worksheets within a workbook, but not off-book references.
If you have created a calculator, and there are some constants you want to set, for example the current rate, then read the following:
SpreadsheetConverter always generates a folder where all the files for a specific spreadsheet is stored.
You have to edit the generated page. Depending on where you place the element.htm, replace elements.htm by ../elements.htm