I am not sure I understand.
Do you mean to change the csv and leave the program it is?
- You can edit the csv and insert your own data.
- You can use a Text Editor (notepad in windows) to edit csv.
- You can use Excel to edit it, but it’s tricky, and I think you need to use import / export to get good results.
- Just make a copy from the old csv and copy new csv into it.
- Of course you can make a simple Excel clone to edit existing csv. But why.
OR do you mean to change the program?