Ensure that the file extension corresponds to the file type of the document. For example, a Microsoft Word document must have a (*.doc) extension for $[officename] to use the appropriate filter.
确保文件扩展名与文档的文件类型相一致。例如，Microsoft Word 文档的扩展名必须是 *.doc，这样 $[officename] 才能使用相应的筛选器。