On iOS/iPhone, you can select files and select "Compress" to create an Archive.zip , which can then be shared or emailed. Differences: ZIP vs. "Add to Archive"
Are you getting an (e.g., "invalid" or "corrupted")? Are you trying to create or open the file? Zip and unzip files - Microsoft Support Archive zip
They act like folders on your computer, but with the added benefits of compression and portability. Extensions: Identified by the .zip or .ZIP file extension. On iOS/iPhone, you can select files and select
Primarily used to reduce file sizes (data compression) and combine multiple files to make sending, sharing, and storing easier. Are you trying to create or open the file
Cloud services like Dropbox can be used for sharing, or other formats like .7z (7-Zip) or .rar (WinRAR) for higher compression.
Modern operating systems like Windows, macOS, and Linux have built-in tools to create ("Compress") or open ("Extract") them, usually by right-clicking the file.
Generally implies simply combining files into a single, uncompressed container for organization, though modern tools often treat these terms interchangeably. If you're having trouble with a specific file, let me know: Are you using Windows or Mac ?