Bentley Microstation Hidden Line File

Unknown

These are hidden line files, one of a range of files created when using Microstation CAD software for 2D and 3D design, which is produced by Bentley Systems, Incorporated.

Identify it

Extensions	`.hln`
Signatures	`0809fe` at byte 0 (Bentley Microstation Hidden Line File)
PRONOM	`fmt/1549`
Wikidata	`Q110443436`

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Open it

MicroStationreads and writes

Convert it

No conversion recorded. One of the tools above may export it; search for a chain.

Sources

PRONOM fmt/1549
Wikidata Q110443436

From PRONOM, Wikidata. Updated 2026-10-20.

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