OpenType font file format
File type: Font and typeface file
Files with otf file extension can be most typically encountered as fonts saved in the OpenType font format which has been developed by Microsoft and Adobe.
Found 3 different file type records with the same otf filename suffix.
File type category:
Font and typeface file
Date updated: December 30, 2024
The otf file extension is best known for its use for OpenType font format, a scalable format for computer fonts, initially developed by Microsoft, later joined by Adobe Systems.
OpenType was first announced in 1996, with a significant number of OpenType fonts starting to ship in 2000–2001. Adobe completed conversion of its entire font library to OpenType around the end of 2002.
A computer font (or font) is a file format used to store a set of glyphs, characters, or symbols such as dingbats.
OpenType is supported in both Microsoft Windows and macOS / OS X.
MIME types used:
application/vnd.oasis.opendocument.formula-template
application/x-vnd.oasis.opendocument.formula-template
Many programs support fonts in OpenType font format.
Use any font editing tool to export *.otf fonts to other font formats.
Fontographer (Microsoft Windows)
FontCreator (Microsoft Windows)
TypeTool (Microsoft Windows)
Fontographer for Mac (Apple macOS / Mac OS X)
TypeTool for Mac (Apple macOS / Mac OS X)
FontLab Studio (Multiplatform)
DTL OTMaster (Multiplatform)
Fontographer (Microsoft Windows)
FontCreator (Microsoft Windows)
TypeTool (Microsoft Windows)
Fontographer for Mac (Apple macOS / Mac OS X)
TypeTool for Mac (Apple macOS / Mac OS X)
FontLab Studio (Multiplatform)
DTL OTMaster (Multiplatform)
Fontographer (Microsoft Windows)
FontCreator (Microsoft Windows)
Fontographer for Mac (Apple macOS / Mac OS X)
FontLab Studio (Multiplatform)
DTL OTMaster (Multiplatform)
Microsoft Windows (Microsoft Windows)
FontCreator (Microsoft Windows)
Font Book (Apple macOS / Mac OS X)
Mac OS X (Apple macOS / Mac OS X)
DiskFonts (Multiplatform)
Fontographer (Microsoft Windows)
FontCreator (Microsoft Windows)
Adobe Font Development Kit (Microsoft Windows)
Fontographer for Mac (Apple macOS / Mac OS X)
FontCreator (Microsoft Windows)
Microsoft Windows (Microsoft Windows)
TypeTool (Microsoft Windows)
6D Embroidery Software (Microsoft Windows)
TypeTool for Mac (Apple macOS / Mac OS X)
Font Book (Apple macOS / Mac OS X)
Glyphs (Apple macOS / Mac OS X)
Mac OS X (Apple macOS / Mac OS X)
FontConverter (On-line services)
Online font converter (On-line services)
BitFonter (Microsoft Windows)
FogLamp (Apple macOS / Mac OS X)
BitFonter for Mac (Apple macOS / Mac OS X)
Glyphs (Apple macOS / Mac OS X)
FontConverter (On-line services)
Online font converter (On-line services)
FontCreator (Microsoft Windows)
Font Book (Apple macOS / Mac OS X)
Microsoft Windows (Microsoft Windows)
Mac OS X (Apple macOS / Mac OS X)
File type category:
Bitmap image file
Date updated: October 17, 2018
The otf file extension is associated with the DeltaVision, a microscopy imaging solutions developed by GE Healthcare (also known as Applied Precision).
The otf files stored picture image captured by DeltaVision.
Use compatible tools to work with *.otf files.
Probably can be converted to other formats.
softWoRx Explorer (Multiplatform)
softWoRx Explorer (Multiplatform)
softWoRx Explorer (Multiplatform)
File type category:
Document file
Date updated: April 18, 2019
An otf file extension is associated with OpenOffice and StarOffice made by Sun Microsystems, Inc.
The file format is part of the Open Document Format for Office Applications (OpenDocument) 1.0 specification. This OASIS format is expected to become an industry standard for sharing documents.
It is being adopted by the OpenOffice and StarOffice version 2 software suite but may appear in other products as well.
Use OpenOffice/StarOffice/LibreOffice to open *.otf formula files.
Probably can be exported to other formats.
StarOffice (Microsoft Windows)
Apache OpenOffice (OpenOffice.org) (Multiplatform)
LibreOffice (Multiplatform)