如何在flex app中查看excel中的数据？

I have a flex-application deployed on tomcat with blazeds. User constantly selects ranges excel-document. Now, a user enters a cell addresses in text fields (for example, C1: C20). But it is very inconvenient! How to display excel-data as a table in my application? I think, I can parse excel-document using Apach POI and transmit these data to the Flex-application. But there are other ways?I have a flex-application deployed on tomcat wi