How do I change footnotes to endnotes in word

Using the program Word, I have written a paper with footnotes that are numbered in arabic numerals from 1 through 15. I have been asked to change these footnotes to endnotes that also use arabic numerals. How do I do this?

Select the "References" tab in Footnotes. Select the ones you want to change then right click and select, "Change to Endnote."