Question: How do I view a .dj file saved to the floppy drive on my TDS3000 series oscilloscope?
Answer: The file extension .dj means the file saved was intended to be sent to a DeskJet printer, and a file extension of .lj is a LaserJet printer and an extension of .tj is a ThinkJet printer file. The waveform files should have been saved as one of the viewable file formats such as .png or .bmp, or the waveform should have been sent to a connected printer.
The only way to view the file contents now is to put the file on your PC and send the file to a connected compatible printer that recognizes DeskJet, ThinkJet or LaserJet formats.