A daily updated filename extension database!

12M file extension

The table below provides useful information about the .12m file extension. It answers questions such as:

  • What is the .12m file?
  • What program do I need to open a .12m file?
  • How can the .12m file be opened, edited or printed?
  • How can I convert .12m files to another format?

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

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

✅ Lotus 1-2-3 Smartmaster Template

.wt4
Description:
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
Mime-type: application/vnd.lotus-1-2-3
Magic number: -
Magic string: -
Sample: -
WT4 aliases:
12m
WT4 related links:
-
WT4 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

Revisable-Form Text

Other types of files may also use the .12m file extension.

🚫 The .12m file extension is often given incorrectly!

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

12, 1m, w2m

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Solo Explorer Transcription

🔴 Can't open a .12m 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:

example.12m

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 .12m 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 .12m file extension, write to us!

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