Occasionally, legacy software or driver packages are distributed in multi-part archives that must all be downloaded to the same folder before being extracted as one. Tips for Managing Multiple Zip Downloads
If the files are part of a "split archive" (e.g., .z01, .z02... .zip), you need all 28 parts in the same directory to successfully open the first one. Download (28) zip
Outside of Brazilian politics, seeing a "Download (28) zip" instruction usually implies: necessitating 28 separate parts.
A photographer or videographer sharing a gallery where the platform limits the size of a single zip, necessitating 28 separate parts. Download (28) zip