I work with computers more than hammers and wrenches, so I feel for 'ya.
Geek background - Dynon chose ".dfg" as a "file extension" as those files are intended only to be used with the SkyView system. The geeks can easily configure their "text editors" to edit a non-standard file such as something.dfg, but for the rest of us, it's a big daunting.
If you want to edit it (easily) using a PC, temporarily rename the file:
canopy_2500.txt
Here's the step by step.
1. Right-click the link and select "Save link as...". SAVE IT TO SOMEPLACE YOU CAN FIND IT (like the "Desktop").
2. Change the name (single-click on the filename) to canopy_2500.txt.
3. Double click on "canopy_2500.txt". It will open in a text editor of some kind (depends on which flavor of Windows you have).
4. Change the value of 2500 to whatever is appropriate to your aircraft.
5. From the menu, select File, Save As and fill out the name that's more descriptive for the changed RPM value; for example, canopy_1700. IMPORTANT - the last part of the filename must be .dfg. So the full (example) filename would be:
canopy_1700.dfg
Again, save this file where you can easily find it (like the "Desktop").
6. Plug in your USB flash drive for your SkyView system. Note what it's name is when Windows recognizes it.
7. Drag the file (again, using the example name from above) canopy_1700.dfg to the USB flash drive. Do not put that file inside any folder on the USB flash drive - it must be at the "top level" (which geeks call "the root").
8. Unplug the USB flash drive from your Windows PC.
9. Transport the USB flash drive to your SkyView system.
10. Boot up your SkyView system.
11. Plug the USB flash drive to your SkyView system. Wait about 10 seconds for it to be recognized by SkyView.
12. Push buttons 7+8 to get into the menu.
13. Select "Load File" (sorry, this is a bit fuzzy as I don't have access to a SkyView display at the moment for the exact sequence / wording).
14. Select "canopy_1700.dfg" in the SkyView screen.
15. Push the LOAD button. Confirm when it says "Are you sure?".
If there are no issues with the file, the SkyView display will confirm that the file was loaded.
Hope that gets you going.
I guess I have it saved but I cannot open it. Maybe it's not a file that you open , maybe I need to load it onto a stick and load it into my Dynon. I work with hammers and wrenches not computers. Anyone need help with a hammer?