Using Apache POI to write out XML from Excel
apache-poi, java
Solution
I've never used POI directly, though I've used Apache Tika (which implements POI) to do something similar. The parser/handler interface automatically converts a document into XML which you should be able to adjust for your own purposes.
https://tika.apache.org/1.2/parser.html
Problem
I have a need to convert my excel files into XML. Currently I have a tool that uses POI that spits out 2010 excel files (xlsx), but I would like to extend that further and have it spit out XML as well. I can't seem to find any explicit examples of how to do that in POI, but searching suggests it is possible. Was hoping someone would have some direct experience with this? thanks!