Which are utterly useless to non-Mac devices and users.įurther, by adding a duplicate set of hidden files to the zip archive, Mac essentially is doubling the size of the download zip file, which of course wastes bandwidth, disk space, and everything else. So anyone downloading your zip files on their Windows, Linux, or other non-Mac is going to see all those hidden files and folders. This is a real problem because many people use Mac to zip files to share on the Web. Why does macOS include hidden files in zip archives? It makes absolutely zero sense.
In fact quite the opposite: the hidden files serve NO purpose other than to waste bandwidth, time, energy, resources, etc. Thus the confusion: Why on earth are the hidden files added in the first place? They are completely excluded when unzipping on Mac, and never needed for any reason on any other machine. So again, all the hidden files/folders added by Mac are included in the unzipped files ONLY when the files are unzipped on non-Mac machines. Well, at least it was the case for whoever packed this zip file.Mac excludes all hidden macOS files when opening zip archives ( view hidden files enabled) We are looking at an instance of the extended attribute, which in this case says the file was downloaded with Chrome. # swop/_MACOSX/._GRACoL2013_CRPC6.icc: AppleDouble encoded Macintosh fileĮven without knowing the file format (documented in RFC 1740), you can more or less figure out what is saying. Just to add to answer, the hidden files are written in the AppleDouble format, which is originally used to store additional metadata on Unix systems.Įxample ( GraCoL 2013 ICC): unzip -d swop SWOP2013_and_GRACoL2013_ICC_Profiles.zipįile swop/_MACOSX/._GRACoL2013_CRPC6.icc
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