C# 任何用于处理 Excel（*.xls 和 *.xlsx）文件的开源/免费库？
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Any open source / free library for handling Excel (both *.xls and *.xlsx) files?
提问by King King
I know of some open source libraries for handling with Excel files but these are for only *.xls or *.xlsx, for example NPOI is for *.xls, EPPlus and ClosedXML are for *.xlsx. I don't want to use Microsoft Excel Automation because of the performance matter. Could you please suggest me with some open source or free library meeting this purpose (handle with both *.xls and *.xlsx).
我知道一些用于处理 Excel 文件的开源库，但这些库仅用于 *.xls 或 *.xlsx，例如 NPOI 用于 *.xls，EPPlus 和 ClosedXML 用于 *.xlsx。由于性能问题，我不想使用 Microsoft Excel 自动化。您能否向我推荐一些符合此目的的开源或免费库（同时处理 *.xls 和 *.xlsx）。
采纳答案by WolfOdrade
How about spreadsheetlight? Is open-source, with an MIT license.
电子表格灯怎么样？是开源的，具有 MIT 许可证。
