: Supplemental figures (e.g., Figure S1 ), tables, or raw data that didn't fit in the main paper.

If you have an empty ZIP folder and want to put files into it, use these methods based on your device: : Locate the files you want to add.

: These files are typically available at the end of the online version of an article under a "Supplementary Materials" section. 3. Programmatic Ways to Create ZIP Content