A daily updated filename extension database!

DT5 file extension

The table below provides useful information about the .dt5 file extension. It answers questions such as:

  • What is the .dt5 file?
  • What program do I need to open a .dt5 file?
  • How can the .dt5 file be opened, edited or printed?
  • How can I convert .dt5 files to another format?

Table of Contents

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

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

✅ BK Backup Data

DT6 file is a BK Backup Data. Brother's Keeper (BK) is a Windows genealogy program that will help you input and organize your family history information and let you print a large variety of charts and reports.
DT6 format description not yet available
Category: Data files
Application: BK
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DT6 aliases:
DT6 related links:
DT6 related extensions:

Other types of files may also use the .dt5 file extension.

🚫 The .dt5 file extension is often given incorrectly!

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

ct5, dg5, dr5, dt, dtr, dtt, dty, rt5, st5, td5

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

SBIG CCD Camera Image
Bentley Map Dictionary Data
Data Transfer To iSeries File
DGLux5 Page
Dramatica Story Expert Project
shntool MD5 Checksum
Proben1 Dataset
CaseMap 5 Template
SAS/GIS TIGER Feature Name List
Panasonic KTS Application

🔴 Can't open a .dt5 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 .dt5 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 .dt5 file extension, write to us!

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