Create and read an Excel file, cf.
<https://howtodoinjava.com/java/library/readingwriting-excel-files-in-java-poi-tutorial/>

To compile the Java (.xlsx only) programs:

        javac  WriteExcelDemo.java
        javac  ReadExcelDemo.java

To run the Java (.xlsx only) programs:

        java  WriteExcelDemo
        java  ReadExcelDemo

To run the ooRexx programs (they handle both, .xls and .xlsx):

        rexx WriteExcelDemo.rxj
        rexx ReadExcelDemo.rxj


rgf, 20260201
