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1. Using Figshare as described in Figshare (supplementary material). In this case the material is separated from the article itself. Reference to the supplementary material at the Figshare server can be made through a DOI link. As of now, this option is not recommended as, a.o., it may complicate the migration from brill.com content to degruyterbrill.com. 
2. Include the supplementary material in the JATS package. An additional tab is created at the article page on brill.com. From this tab the supplementary files can be downloaded. This is the best practice for brill.com as of now. (Date: 14 April 2025) 

Details of the second option are specified hereafter.

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1. 1. Attribute specific-use="local" to identify that a file on the webserver is used as supplementary material
   2. Attribute mimetype="[.ext]" to specify the file extension/filetype. Supported values can be found here: https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types.
   3. Attribute xlink:href="supplement/[filename]" to specify the file
   4. Element <label>Download [filetype] file</label> <label>text</label> to create a link to the file with the supplementary material. Entered text is displayed as link on the Supplementary material tab. Clicking this link will result in a download of the supplementary file. Text suggestions:
      1. Download Excel file with additional data
      2. Download Appendix 1: ....
      3. Appendix 1: ....

Example:       

<supplementary-material specific-use="local"
                                 mimetype=".xlsx"
                                 xlink:href="supplement/jiff2022.0168_esm.xlsx">
	<label>Download Excel file</label>
</supplementary-material>

Example with multiple files:

<supplementary-material specific-use="local"
                                 mimetype=".xlsx"
                                 xlink:href="supplement/dataset.xlsx">
	<label>Excel file with the complete dataset</label>
</supplementary-material>
<supplementary-material specific-use="local"
                                 mimetype=".pdf"
                                 xlink:href="supplement/interview.pdf">
	<label>Sample interview transcription</label>
</supplementary-material>

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