stl

.stl — Stereolithography File

3D Systems · 1987

開発者

3D Systems

カテゴリ

3D・CAD

MIMEタイプ

application/sla

初回リリース

1987

オープンフォーマット

はい

ファイルシグネチャ

73 6F 6C 69 64 (solid, ASCII) or 80 bytes header (binary)

.stlファイルとは？

STL (Stereolithography) is the most widely used file format for 3D printing. It describes the surface geometry of a 3D object using triangular facets without any color, texture, or material information. STL files come in both ASCII and binary formats, with binary being preferred for its smaller file size. The format's simplicity makes it universally supported by 3D printers, slicers, and CAD software.

.stlファイルを開くプログラム

プラットフォーム	プログラム
Windows	3D Builder	無料	公式
	Blender	無料
	Cura	無料
macOS	Blender	無料
	MeshLab	無料

.stlファイルのよくある問題

⚠️ Cannot open .stl file

Install one of the recommended programs listed above. For a free option, try the first free program in the list.

⚠️ .stl file is corrupted

Try re-downloading the file. If the file was transferred, ensure the transfer completed without errors.

よくある質問

What program opens .stl files?▼

.stl files can be opened with several programs. 3D Builder is one of the most popular choices.

Is .stl a safe file format?▼

Generally yes, .stl files are safe to open with appropriate software.

Can I convert .stl to another format?▼

Yes, there are many online and offline tools available to convert .stl files. Check the conversion section above for specific methods.

技術詳細

Stereolithography File files use the application/sla MIME type and were first introduced in 1987 by 3D Systems. The file can be identified by its signature: 73 6F 6C 69 64 (solid, ASCII) or 80 bytes header (binary).

豆知識

Stereolithography File was first released in 1987 by 3D Systems

セキュリティ情報

.stl files are generally safe to open. However, always ensure your software is up to date to protect against potential vulnerabilities.