If you are a developer looking to generate content for a ZIP file via code:

: Use ZipArchive::addFromString() to create a file with specific text content inside your ZIP. How To Create a Zip File on Windows (Step By Step)

Alternatively, right-click the files, select (Windows 11) or "Send to" > "Compressed (zipped) folder" (Windows 10) to create a new one with those contents. Android (Files by Google) : Open the Files by Google app .

: 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.

To add a file to an existing ZIP: zip s1empty.zip filename.txt . 2. Academic "S1" Supplementary Materials