VisActor
[Feature] 希望vtable增加导入功能
What problem does this feature solve?
现阶段有导入excel功能的需求，看了下vtable官方文档只找到了导出功能的介绍，自己处理会有一下格式、样式的差别，可能和vtable格式不太一致，或者说有相关实例可以参考吗？
What does the proposed API look like?
希望有相关实例参考，能够导入excel格式文件，且支持vtable实例展示
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