What Is Box-Drawing Table? Format, Uses and Conversions

What is Box-Drawing Table?

The same grid as an ASCII table, drawn with Unicode box-drawing characters instead of punctuation.

Who uses it

Terminal UIs and documentation where the output is known to be UTF-8.

Writing Box-Drawing Table

Prettier than plus signs, and safe anywhere the reader's font has the box-drawing block, which is almost everywhere in 2026.

What it can hold

box-drawing table is a delimited text format. A box-drawing table is an ASCII table drawn with Unicode box characters, so it needs a UTF-8 terminal to line up. A machine can read it back, but only by following the conventions rather than a rule the format enforces.

It keeps

A header that is marked as one, rather than being the first row by convention.

It cannot express

Types. Every value is text. A column of digits is indistinguishable from a column of numbers until something downstream decides to read it as one, which is where a leading zero usually disappears.
A null. An absent value and an empty one look the same, and nothing in the file says which was meant.
Nesting. Cells are flat, so structured values have to be flattened into extra columns or written into one cell as text.
A line break inside a cell. One would end the row, so it has to be replaced before writing.
A partial read. The document has to be complete to mean anything, so a truncated file yields nothing and a large one has to be held in memory whole.

What it looks like

Example Box-Drawing Table

┌─────┬──────────────────┬───────────────┬────────────┬───────┐
│ id  │ name             │ role          │ started    │ hours │
├─────┼──────────────────┼───────────────┼────────────┼───────┤
│ 007 │ Halima Yusuf     │ Analyst, data │ 2024-03-15 │ 38.5  │
│ 012 │ Jonah "Jo" Pryce │ Engineer      │ 2025-11-02 │       │
│ 104 │ Wei Chen         │ Manager       │ 2023-06-30 │ 40    │
└─────┴──────────────────┴───────────────┴────────────┴───────┘

Questions

How do I open Box-Drawing Table files?

Box-Drawing Table is written by Tablizer rather than read by it. Open the file in whichever tool the format belongs to.

Is Box-Drawing Table a good format for sharing data?

It depends who is receiving it. Terminal UIs and documentation where the output is known to be UTF-8. If the recipient is outside that group, a plain CSV travels further than anything else.