Filename Extensions
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Details of extension .numbers-tef

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

Below, you can find answers to the following questions:

  • What is the .numbers-tef file?
  • Which program can create the .numbers-tef file?
  • Where can you find a description of the .numbers-tef format?
  • What can convert .numbers-tef files to a different format?
  • Which MIME-type is associated with the .numbers-tef extension?
Apple Numbers iCloud Spreadsheet .numbers-tef file icon

Apple Numbers iCloud Spreadsheet

The NUMBERS-TEF file is an Apple Numbers iCloud Spreadsheet. Numbers is a spreadsheet application developed by Apple Inc. as part of the iWork productivity suite alongside Keynote and Pages.
Detailed description not available
Category: Document files
Application: Apple Numbers
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): 0x50, 0x4b, 0x03, 0x04
Magic string (ASCII): PK
Related extensions:
Microsoft Works Spreadsheet
Quattro Pro Spreadsheet
Microsoft Excel Worksheet
Lotus 123 Spreadsheet
OpenDocument Spreadsheet
Microsoft Excel 2007 Document
Microsoft Works Spreadsheet
Lotus 1-2-3 V2 Spreadsheet
Quattro Pro Compressed Spreadsheet

Other types of files may also use the .numbers-tef file extension. If you have helpful information about .numbers-tef extension, write to us!

Can't open a .numbers-tef file?

If you want to open a .numbers-tef file on your computer, you just need to have the appropriate program installed. If the .numbers-tef association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.numbers-tef

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android