用于批量读取光谱数据，如近红外光谱、拉曼光谱、红外光谱等，格式可以是txt，csv等。(Used to read spectral data in batches and generate matrix)

光谱进行读取，将光谱文档进行读取，包内的xls为血液红外光谱文档（阉割版）(The spectrum is read and the spectral document is read. The XLS in the packet is a blood infrared document.)