Cannot get a text value from a numeric cell

[ktk]

I try to convert an XLSX file to RDF. It seems to work with the sample specified in the tests but it does not work on my file, I get the following exception:

6159 [main] ERROR be.ugent.mmlab.rml.core.RMLEngine  - Exception java.lang.IllegalStateException: Cannot get a text value from a numeric cell

I'm a bit confused by that as it doesn't seem to matter which cell I specify. First it was indeed a row with numbers in it but I get the same error on another row with strings

[andimou]

Could you attach the input and the map doc? Or a sample of it?

[ktk]

Sure, here we go: http://ktk.netlabs.org/misc/sample.zip (Github didn't want to accept the files itself for whatever reason)

BTW StackOverflow about the exception