.otf

File Type 1 OpenType Font IconOpenType Font
File Format Standard
Usage Open manually; may run a program or script when opened
Rank ★ ★ ★  Common
Description

Font format developed by Adobe and Microsoft; combines aspects of PostScript and TrueType font formats; fully scalable, meaning the font can be resized without losing quality.

The OpenType font format is supported by Mac OS X and Windows 2000 and later.

Open With
Windows

IconMicrosoft Windows Font Viewer

IconFontForge

macOS

IconApple Font Book

IconFontForge

Unix

IconFontForge

Updated August 26, 2010
File Type 2 Generic IconOpenTuft Tufting Design File
File Format Standard (developed by NedGraphics)
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

General interface format for creating tuft designs that can be processed by tufting machines; allows designs to be weaved into various textile products; contains information such as thread-up, yarn placement, and yarn tuft lengths.

The OTF file format is specified in a Windows .INI file-like structure.

Important: The OTF format is supported by NedGraphics tuft design software, but NedGraphics changed the ".otf" extension to ".otu" since there were conflicts with OpenType font files.

Open With
Windows

IconNedGraphics Tuft software

Updated 2007
File Type 3 Generic IconOpenDocument Formula Template
File Format Proprietary (Oracle)
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

Template for creating formulas used by OpenOffice spreadsheets; allows cells within the spreadsheet to be automatically filled in based on formula calculations; formatted using the OASIS OpenDocument XML standard.

Open With
Windows

IconApache OpenOffice

IconOracle Open Office

macOS

IconApache OpenOffice

IconOracle Open Office

Unix

IconApache OpenOffice

IconOracle Open Office

Updated 2007
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