A daily updated filename extension database!

DUP1 file extension

The table below provides useful information about the .dup1 file extension. It answers questions such as:

  • What is the .dup1 file?
  • What program do I need to open a .dup1 file?
  • How can the .dup1 file be opened, edited or printed?
  • How can I convert .dup1 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

✅ Samsung Kies Duplicate Media Data

DUP0 file is a Samsung Kies Duplicate Media Data. Samsung Kies is a software that lets you connect your mobile phone to a PC and it synchronizes data for easy transfer.
DUP0 format description not yet available
Category: Data files
Application: Samsung Kies
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
DUP0 aliases:
dup1, dup2
DUP0 related links:
DUP0 related extensions:
Samsung Kies Contacts Backup

Samsung Kies Messages Backup

Samsung Kies Backup Archive

Samsung Kies Smartphone Encrypted Firmware

Other types of files may also use the .dup1 file extension.

🚫 The .dup1 file extension is often given incorrectly!

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

dp1, dup

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

DataPower Database
SkyView User Waypoints File
Atari ST DUO Image

🔴 Can't open a .dup1 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 .dup1 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 .dup1 file extension, write to us!

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