noun
self-extracting file
Computing term for a compressed archive that can decompress itself without separate software.
この自己解凍ファイルをダブルクリックすると、自動的に展開されます。
Double-click this self-extracting file and it will automatically decompress.
A compressed file in general, which may require separate software to decompress, unlike a self-extracting file.
Compound of 自己 (self) + 解凍 (decompression) + ファイル (file), a calque from English 'self-extracting file'.