.SMF File Extension

File Type 1

StarMath Formula File

Developer Oracle
4.0  |  24 Votes
Category Text Files
Format Binary

What is an SMF file?

Math formula created by OpenOffice Math and other variants of the office suite, such as LibreOffice Math; stores the syntax and formatting of a mathematical equation or expression; replaced with the newer .ODF format, but is still supported by Apache OpenOffice.

More Information

NOTE: The SMF format was originally used by StarMath through StarMath version 5. StarMath 6 and Apache OpenOffice version 1 adopted the .SXM format, which was then replaced by the OpenDocument ODF format. Apache OpenOffice still supports the SMF format even though it has been deprecated.

NOTE: Apache OpenOffice was formerly known as OpenOffice.org.

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Programs that open or reference SMF files

Updated May 1, 2019
File Type 2

Standard MIDI File

Developer N/A
3.5  |  12 Votes
Category Audio Files
Format N/A

Formal MIDI file specification developed by the MIDI Manufacturers Association; similar to a .MID file.

Programs that open SMF files

Included with OS
Updated 2006
File Type 3

Serif Metafile

Developer Serif
3.6  |  5 Votes
Category Vector Image Files
Format Binary

Vector image created in the Serif Metafile (SMF) format, a proprietary format that extends the Windows Metafile (WMF) format to include better line, fill, and text definitions; used for sharing vector graphics between Serif applications, including DrawPlus and PagePlus.

More Information

Serif discontinued PagePlus and replaced it with Affinity Publisher in 2017. Serif also discontinued DrawPlus in 2015. The last version of the software was X8.

Programs that open SMF files

Serif DrawPlus
Updated July 22, 2020
File Type 4

SkinMagic Toolkit File

Developer Appspeed
3.7  |  3 Votes
Category Developer Files
Format Binary

Project file created by SkinMagic Toolkit, a developer program used for creating application interface skins; can contain user interface dialogs and bitmap graphics that are used for overlaying components (buttons, borders, etc.) of the interface.

More Information

SMF files are created by a program called SkinMagicBuilder, which is included in the SkinMagic Toolkit installation.

Programs that open or reference SMF files

Updated October 5, 2016

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