Session->NewSession->TextCompareLoad the left and right panels by dragging files with the mouse and dropping them anywhere. You can drag in Python code, two images, some Word docs, a couple of PDFs... Or use this test data.
Tools->FileFormats. Also visible in this shot is (7), the line ending style. If you are not a programmer, don't worry too much about this. Just know that the possible lineendings are Unix, PC, Mac, or Mix.
Tools->FileFormatsAnd finally, head to the Scooter Software page and see the supplemental file formats you can download for free.