noun
data format
Technical computing term for the structure or encoding of data, such as CSV, JSON, or binary formats.
このソフトは複数のデータ形式に対応しています。
This software supports multiple data formats.
ファイル形式 (file format) is often used interchangeably, but データ形式 emphasizes the data structure itself rather than the container file.
Compound of データ (data, from English) and 形式 (format, form). A straightforward modern technical term.