No, EPPlus only works with OOXML ( .xlsx ). If you want to read older excel files, you can try NPOI project.
In my case users can upload Excel 2003 or 2007 files, & EPPlus very well handles 2007 files. What do you suggest for handling Excel 2003 .xls files ??
Do I need add NPOI project as well ( its like adding another third party )
Or can you suggest me only I tool that takes care of both .
Looking forward for your advice.