I was using Lotus Freelance to make charts in the late 1980s and early 1990s.
Did you print them out on a dot matrix printer?
Since you asked - My first work printer was an original ink jet. It had a little bladder in a plastic enclosure. When it got clogged, the user was supposed to stick a paper clip through a hole in the enclosure, push on the bladder, and force some ink through the nozzle. My office mate called it a stink jet.
Then I got a LaserJet +. I paid extra for the extra memory, and I bought a font cartridge to do equations. This was before WYSIWYG, but I figured out how to do equations by typing in the ASCII code corresponding to the upper and lower half of integral signs, capital sigmas (for sums), and all the greek characters. I remember typing up a big technical report on some analysis I did, and I built complex, multi-line equations. On the screen, it looked like a bunch a garbage text, but it printed out very nicely. I was really proud of this, and tried to teach the secretary, but it was too hard for her and she just wanted to continue to use rub-ons for the equations.
I was making a lot of plots, and that didn't work too well on bit-mapped printers with low resolution way back then, so I bought a pen plotter. I programmed it to plot all my data. I'd cue it up, and come back a couple of hours later with a bunch of plots. Those pen plotters were pretty cool.
Since you mentioned dot-matrix printers - another office mate had a dot matrix printer. She worked for the business office. Every monday morning she'd do a financial run of the previous week's charges. She'd cue up the job, and the dot-matrix would start printing, back and forth and back and forth all morning. She would leave to go chat with her friends while I was stuck there listening to it.