O AnyDice export format is pretty easy to parse: it's basically just CSV text. In fact, you could directly import it into a spreadsheet program, but then you'd have to rearrange the data into a grid there.
To avoid that chore, I wrote a quick Python script to read the exported data from your AnyDice code (specifically, the first section of the AnyDice summary export, from after the "mean" e "output",# lines up to the next blank line), extract the row and column numbers from the output name with a regexp and print the result as a grid:
import csv, sys, re
csvreader = csv.reader(sys.stdin)
table = {}
columns = []
for name, value in csvreader:
row, col = re.findall(r'-?\d+', name)
if row not in table: table[row] = {}
if col not in columns: columns.append(col)
table[row][col] = value
csvwriter = csv.writer(sys.stdout)
csvwriter.writerow([''] + columns)
for row in table:
csvwriter.writerow([row] + [table[row][col] for col in columns])
(The regexp -?\d+ fósforos one or more digits with an optional minus sign in front, i.e. a whole number. If there aren't exactly two such numbers in the name of each AnyDice output, the script will crash with a ValueError. Anything else in the name of the output gets ignored, so the name "0 foo 2" é tão bom quanto "Spell Level 0, proficiency bonus 2" as far as the script is concerned.)
Running the script on your data (try it online!), it prints the following grid, also in CSV format:
,2,3,4,5,6
0,0.6,0.65,0.7,0.75,0.8
1,0.55,0.6,0.65,0.7,0.75
2,0.5,0.55,0.6,0.65,0.7
3,0.45,0.5,0.55,0.6,0.65
4,0.4,0.45,0.5,0.55,0.6
5,0.35,0.4,0.45,0.5,0.55
6,0.3,0.35,0.4,0.45,0.5
7,0.25,0.3,0.35,0.4,0.45
8,0.2,0.25,0.3,0.35,0.4
9,0.15,0.2,0.25,0.3,0.35
We can then import this into any spreadsheet software, like Microsoft Excel or Open/LibreOffice Calc. Just to do this whole thing online, I decided to use planilhas do Google.
After importing the CSV file, I selected the data area (excluding the header row and column), selected Formato → Conditional formatting... from the menu, and chose the "Color scale" tab in the sidebar that it opens. The default color scale ("green to white") looked a bit ugly and low-contrast to me, so I changed it to "red to white to green", and got this:
Not bad for a first try, in my opinion. Here's the actual spreadsheet, if you want to see it "live". Of course, there's a lot we could do to improve the formatting, like adjusting the column widths and the horizontal alignment of the numbers and adding some labels for the headers, but this should at least demonstrate the basic workflow.
