My CSV story from last night: I had these 15MB+ excel sheets and was trying to open them with Apache POI. I gave that code a generous 2GB memory: GC overhead l

My CSV story from last night: I had these 15MB+ excel sheets and was trying to open them with Apache POI. I gave that code a generous 2GB memory: GC overhead limit reached. Then I opened them in Excel, saved them as CSV, reached for a CSV-library and was done within seconds. Ok, well, the story is more about how parsing XML can ruin your day ;)