A daily updated filename extension database!

SF1 file extension

The table below provides useful information about the .sf1 file extension. It answers questions such as:

  • What is the .sf1 file?
  • What program do I need to open a .sf1 file?
  • How can the .sf1 file be opened, edited or printed?
  • How can I convert .sf1 files to another format?
  • Where can I find the specifications for .sf1?
  • Which MIME-type is associated with the .sf1 extension?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

Census Bureau Summary File 1

SF1 file is a Census Bureau Summary File 1. The United States Census Bureau is a division of the U.S. Department of Commerce and is overseen by Economics and Statistics Administration.
Category: Data files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
SF1 aliases:
SF1 related links:
SF1 related extensions:

Other types of files may also use the .sf1 file extension.

The .sf1 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

wf1, cf1, st1, sg1, sfl, se1, sb1, sv1, sr1, sfw, sf, sc1

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

EViews Workfile
Dali Raw Image
Common Loudspeaker Format Type 1 File
RollerCoaster Tycoon Saved Game
Sound Forge Audio Data
MemoryMixer Album
Seattle FilmWorks Image
Digital Signature
Freescale S-record File
Stanford Graphics Image

Can't open a .sf1 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .sf1 file association, check the FAQ.

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .sf1 file extension, write to us!

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