Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .12m

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

Below, you can find answers to the following questions:

  • What is the .12m file?
  • Which program can create the .12m file?
  • Where can you find a description of the .12m format?
  • What can convert .12m files to a different format?
  • Which MIME-type is associated with the .12m extension?
.wt4
Lotus 1-2-3  Smartmaster Template .wt4 file icon

Lotus 1-2-3 Smartmaster Template

WT4 file is a Lotus 1-2-3 Smartmaster Template. Lotus 1-2-3 is a spreadsheet program designed for IBM-compatible personal computers by Lotus Corporation in 1982.
Category: Document files
Application: Lotus 1-2-3
Program name: -
Mime-type: application/vnd.lotus-1-2-3
Magic bytes (HEX): -
Magic string (ASCII): -
Aliases:
12m
Links:
-
Related extensions:
Comma-Delimited ASCII File
Comma-Separated Values
ClarisWorks Document
Data Interchange Format
Microsoft Word Document
Lotus Word Pro Document
Microsoft Word for Macintosh Document
Data Interchange Format
Microsoft PowerPoint Presentation

Other types of files may also use the .12m file extension. If you have helpful information about .12m extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Solo Explorer Transcription

The .12m filename extension is often given incorrectly!

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

12 (1), 1m (1), w2m (1)

Can't open a .12m file?

If you want to open a .12m file on your computer, you just need to have the appropriate program installed. If the .12m association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.12m

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

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