A daily updated filename extension database!

T11 file extension

The table below provides useful information about the .t11 file extension. It answers questions such as:

  • What is the .t11 file?
  • What program do I need to open a .t11 file?
  • How can the .t11 file be opened, edited or printed?
  • How can I convert .t11 files to another format?

Table of Contents

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

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

✅ At Home 2011 Tax Return Data

T11 file is an At Home 2011 Tax Return Data. H&R Block at Home is a tax preparation program offered by H&R Block.
T11 format description not yet available
Category: Data files
Application: At Home 2011
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
T11 aliases:
T11 related links:
T11 related extensions:
At Home 2012 Tax Return Data

At Home 2013 Tax Return Data

At Home 2010 Tax Return Data

Other types of files may also use the .t11 file extension.

🚫 The .t11 file extension is often given incorrectly!

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

11, f11, g11, h11, r11, t1

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Atari 8-bit Graphics 11 Image
Salt Lake 2002 Music Data
MS-DOS 11-pixel Screen Font
At Home Canada 2011 Tax Return Data
WinRAR Archive
Male MRI Image

🔴 Can't open a .t11 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 .t11 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 .t11 file extension, write to us!

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