Seems like there are a few people having issues with this importer - including me.
I've tried everything I've read in the topics, removing columns, changing the date format, importing the example csv files and none of it is working. I have also ensured that every bit of data in the csv file is unique - still nothing.
Can I bypass the Clipper altogether and upload the categories through myPHPadmin?
I've got something like over a couple hundred categories and really don't want to have to enter them one by one until this issue is resolved. If someone knows a way to get this working please let me know!