There are 5 other file types using
the SFD file extension!

sfd file icon.sfd - SoundStage sound data

sfd file icon.sfd - PowerHouse Subfile dictionary file

sfd file icon.sfd - Fontforge Spline Font database file format

sfd file icon.sfd - Crysis game file

sfd file icon.sfd - Sofdec Sega Dreamcast movie file

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SFD file extension - PDP-10 sub file directory

What is sfd file? How to open sfd files?

File type specification:

Various data file type icon Various data file type

The SFD file extension was also used in old The PDP-10. It was a mainframe computer manufactured by Digital Equipment Corporation (DEC) from the late 1960s on; the name stands for "Programmed Data Processor model 10". It was the machine that made time-sharing common; it looms large in hacker folklore because of its adoption in the 1970s by many university computing facilities and research labs, the most notable of which were MIT's AI Lab and Project MAC, Stanford's SAIL, Computer Center Corporation (CCC), and Carnegie Mellon University.

The PDP-10 architecture was an almost identical version of the earlier PDP-6 architecture, sharing the same 36-bit word length and slightly extending the instruction set (but with improved hardware implementation). Some aspects of the instruction set are unique, most notably the "byte" instructions, which operated on arbitrary sized bit-fields (at that time a byte was not necessarily eight bits).

Help how to open SFD files:

Due the variability and uncertainty of this file type group, there is no general information available, about how to open this various data file format. However most files with extension from this group are usually not meant to be opened or viewed directly. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.

For general information try to look at:
Identifying unknown file formats

How to convert file with extension SFD:

Due the variability and uncertainty of this file type group, there is no general information available, about how to convert this various data file format. However most files with extension from this group are usually not in formats, which can be converted. If there are associated applications or programs listed below the extension description, you can always try to check their website for additional informations on their forums or other type of customer support.

Related links:

Article about PDP-10 at the Wikipedia

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