开始尝试恢复备份或修复文档之前，应试着打开一下其它文档。
Before you start trying to restore a backup or repair a file, try opening other documents.
验证和修复文档中的命名空间信息，使命名空间格式是格式良好的。
Verifies and fixes namespace information in the document, making it namespace well-formed.
演示版没有保存已修复文档的命令，但是所有的版本允许再次开始来修复所需要的多个文档。
Also available is a demo version that does not enable you to save the file, but all versions of the program enable you to start again and recover as many files as you want.
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