DocumentID: ECMA-376/Part1/8.2
Title: ECMA-376, Part1: 8.2 Consumers and Producers
Extracted-From: ECMA-376 Office Open XML File Formats, 1st Edition / December 2006
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8.2 Consumers and Producers

A tool that can read and understand a package is called a consumer, while one that can create a package is called a producer. An application can be a consumer, a producer, or both. For example, when a word processor creates a new document, it acts as a producer. When it is used to open an existing document for reading or search purposes, it acts as a consumer. When it is used to open an existing document, edit it, and save the result, it acts as both consumer and producer. Similar scenarios exist for spreadsheet and presentation applications.