Table:
0
A
B
C
D
E
1
Name
Actual version
System
Platform
License
2
SteEM
3.2
Atari ST E
Windows, Linux
Freeware
3
SainT
2.20
Atari ST /STE
Windows
Freeware
4
Gemulator
9.0
Atari ST
Windows
Commercial (free)
5
Hatari
1.6.2
Atari ST /STE, Atari TT , Atari Falcon
Cross-platform
GPL
6
PacifiST
0.49b
Atari ST
DOS, Windows
Giftware
7
STonX
0.6.7.6
Atari ST
Unix, DOS, Windows
GPL
8
WinSTon
0.1r2
Atari ST
Windows
Freeware
9
ARAnyM
0.9.13
Atari ST , Atari TT , Atari Falcon
Cross-platform
GPL
10
MESS
0.147
Various computers and consoles
Cross-platform
Custom
11
EstyJs
n/a
Atari ST
Cross-platform
[Open Source]

Questions and formulas:
Question: Which License has an Actual Vaersion of 9.0?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1=9),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,B2:B11=9),5))
Level: medium
Question: Which System has an Actual Version 9.0?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1=9),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,B2:B11=9),3))
Level: medium
Question: Which System's Name is Gemulator?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="gemulator"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,A2:A11="gemulator"),3))
Level: medium
Question: Which System's Name is Steem, and has a Freeware License?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="freeware")*(A1="steem")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E11,(E2:E11="freeware")*(A2:A11="steem")),3))
Level: medium