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November 15, 2026
.NUMBERS
Apple Numbers spreadsheet
Spreadsheet Files
updated Jun 23, 2026

Files with the .numbers extension contain ZIP-compressed packages comprising a spreadsheet: an index folder with binary IWA files (iWork Archive format, using Snappy-compressed Protocol Buffers), a metadata folder with PLIST files, and a graphic preview image…

SIGNATURE504B0304"PK" - standard ZIP local file header
OPENS ONAndroidiOSLinuxMac OSmacOS
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