Reading large Excel files

Wouter60 what about csv?

With csv Spout runs flawlessly. My csv-file is 33,800 rows, 15 columns. Spout reads it in 3.78 seconds! And a memory peak of only 3.75 MB.
The same table as an xlsx file won't import at all. I set the time limit to 600 (10 minutes). After that, I get a message that the time limit was exceeded.
My Excel file has only one worksheet. I tried the example Projack89 pointed out. Didn't work.

For now, I'm very happy with the csv option. It's lightning fast!
Thanks for helping me out.