[Monetdb-developers] How to create a binary load files with string values?

Hi, I've tried quite a few things (creating the files/strings with 0 at the end, with 0 and \n at the end, fixed length, etc.) but I still get an error sql>copy into sku from ('/home/mark/MonetDbData/myfile); SQLException:sql:failed to attach file /home/mark/MonetDbData/myfile I know that I can load integer values, because that works, so the problem must be in how I am formatting strings for MonetDB binary load. Are there any examples or any dumps to look at? Thank you, Mark