一个结构化存储的文件通常也称之为OLE复合文档。 复合文档具有很多特性，比如： （1）可以加载和保存局部文档，这可以避免为了读取一小段数据而载入整个文件。 （2）Windows本身在内部就提供了对复合文档的支持。举个例子，即便系统中没有安装Word，我们在资源管理器中察看Word文档的属性时，也可以显示它的大量信息，比如摘要、统计、作者、字数等。因为这些信息就是从Word的复合文档中读取的。 微软公司声称结构化存储将是未来Windows的缺省文件格式。MS-Office就已经大量的使用了结构化存储。-a structured storage files are also known as OLE compound documents. Compound document has many features, such as : (a) can be loaded and preserving local documents, it can be avoided in order to read a small portion of the entire data contained in documents. (2) within Windows itself on the right compound document support. For example, even if the system had not been installed Word, in which resources management for Word documents look at the properties, it can also show that the vast amount of information, such as summary statistics, the author and not so. Because this information is from the compound Word document read. Microsoft claims that the structure of storage will be a future Windows is the default file format. MS-Office on the use of a large number of the storage structure.