How are endnotes numbered in a document by default?

Endnotes in a document are typically numbered using Roman numerals by default. This numbering format provides a clear hierarchical structure for the notes, distinguishing them from footnotes and making it easy for readers to identify and reference them within the text. Roman numerals also carry a classical connotation that can lend a formal quality to a document, which is particularly useful in scholarly writing or formal reports.

The other options represent different types of numbering systems—such as Arabic numerals or lowercase letters—but they do not align with the standard approach for endnotes in most word processing software. The default for endnotes is focused on maintaining a consistent and professional appearance, and Roman numerals effectively serve this purpose.