poi
依赖123456 <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml --><dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>5.2.5</version></dependency>
从文件读入工作簿12fileInputStream = new FileInputStream(frameFile);XSSFWorkbook xssfWorkbook = new XSSFWorkbook(fileInputStream);
sheet1234final int numberOfSheets = xssfWorkbook.getNumberOfSheets();for (int i = 0; i < numberOfSheets; i++) ...