What do most people say for “Name a file format”?

The usual first answers are PDF, JPG and PNG. In Icillion they are worth 10 points each, the least of any level.

How many answers are there to “Name a file format”?

56 in all: 3 on The Tip, 10 Below the Surface, 16 in The Deep, 26 in The Abyss, and a single legendary answer Below the Iceberg.

Which answers to “Name a file format” are the shortest and the longest?

The shortest accepted answer is “7Z” and the longest is “MessagePack”.

Computer Science trivia

Name a file format

Everyone has a first answer to “Name a file format”. The game is about the second, the third and the tenth: 56 answers are accepted, ranked by how rarely people think of them.

The obvious answers

These are the answers most people give first. They count, but they barely move you: 10 points each.

The next answers people reach for

These 10 are known, but not the first thing people say. 25 points each:

GIF
MP3
MP4
TXT
DOCX
XLSX
ZIP
CSV
JSON
HTML

How deep does “Name a file format” go?

Level	Accepted answers	Points
The Tip	3	10
Below the Surface	10	25
The Deep	16	50
The Abyss	26	85
Below the Iceberg	1	100

The Deep holds 16 answers starting with A, B, F, M, O, R, S, T, W, X and Y. The Abyss has 26 more, and one legendary answer waits below them all.

Facts about this list

56 answers in total, 1 of them longer than one word.
Shortest: “7Z”. Longest: “MessagePack”.
P, A and M are the most common first letters; together they start 29% of the answers.
2 answers can be typed more than one way: “JXL” counts as JPEG XL.