Is there a way to import product information via TXT files into Magento? Supplier has only TXT files and no CSV available. I have the impression that MAGMI does not support TXT file type.
Since TXT files have no predefined structure I highly doubt there is any Import extension out there that will support importing your file out of the box. My guess is that you'll probably have to build a script yourself. At least for the data extraction part.
I would advice building a script that extracts the product data and writes it to a CSV or XML file which then can be processed by MAGMI for example. This way you leave the heavy lifting, importing products, to the extension and leaves you with just building a small converter.