What is the difference between spiral, flame, aggregation data What is the difference between spiral, flame, aggregation data? What are the names of the columns, or what are the columns indicate?
For example, spiral is like to:
31.95   7.95    3
31.15   7.3     3
30.45   6.65    3
29.7    6       3
28.9    5.55    3
28.05   5       3
27.2    4.55    3
26.35   4.15    3
25.4    3.85    3
24.6    3.6     3
23.6    3.3     3
22.75   3.15    3
21.85   3.05    3
20.9    3       3

Flame is like to:
1.85    27.8    1
1.35    26.65   1
1.4    23.25    2
0.85    23.05   2
0.5    22.35    2
0.65    21.35   2
1.1    22.05    2
1.35    22.65   2
1.95    22.8    2

Aggregation is like to:
15.55   28.65   2
14.9    27.55   2
14.45   28.35   2
14.15   28.8    2
13.75   28.05   2
13.35   28.45   2
13       2.15   2
13.45   27.5    2
13.6    26.5    2
12.8    27.35   2

I searched but couldn't find a source to illustrate the difference or which columns indicate?
Generally, without knowing the source of the data, we can't tell you much about the columns. But I assume the first two columns correspond to $x$ and $y$. The third is probably some meta-data? Maybe a cluster number?
For an illustration I found this figure coming from this publication. Maybe that helps you imagine the data's shape.
https://www.researchgate.net/publication/338167806_A_Fast_Method_for_Estimating_the_Number_of_Clusters_Based_on_Score_and_the_Minimum_Distance_of_the_Center_Point