用象文本编辑器之类的通用工具来修改文档并不那么困难。
It is not all that difficult to modify the document with general purpose tools like a text editor.
OVF复合工具支持创建、编辑和封装这些类型的实例文档以及它们的支持文件。
The OVF composition tool provides support for creating, editing, and packaging either of these types of instance documents along with their supporting files.
查看或者编辑XML文档的工具通常被称为XML编辑器(如果是只读，则为查看器)。
The tools that view or edit XML documents are commonly referred to as XML editors (or viewers, if read-only).
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