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3 steps to open file with DUO extension

Usually solving problems with DUO file is simple – just install proper software and open the file. Read the guide and open DUO file now!

  1. 1. DUO File Extension
  2. 2. How to open DUO file?
    1. 2.1 Install a program that supports DUO files
    2. 2.2 Find and download proper software
      1. 2.2.1 Programs that support files with DUO extension
    3. 2.3 Check the DUO file for errors
  3. 3. Similar file extensions

DUO File Extension

File
  • File type Microsoft Access
  • File developer Microsoft Corporation
  • File category Misc Files
  • File popularity rating
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How to open DUO file?

There could be multiple reasons for which the system does not support given file. In the case of DUO extension, it is probable that none of the installed programs support given file type. Therefore, user should undertake the following steps

Step 1: Install a program that supports DUO files

If an application that supports DUO files is installed on user’s system, but is not used to open such files by default, right-click on the file icon and choose "Open with" option from the menu. Next, select the proper application and check the "Always use the selected application to open this kind of files" box. The system will store this information in its registry and use the selected program to open files with DUO extension by default.

Hint for Mac OS users

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For Mac OS users the procedure is analogous – open the file menu by right-clicking on the DUO file and choose "Information" option and select "Open with program" option. From the submenu select an application and click on "Change all" button.

Step 2: Find and download proper software

Inability to open DUO files may also be related to the lack of any application that supports given file being installed on the system. Should that be the case, user needs to download and install one of the following applications. Once installed, the system will automatically associate newly installed application with DUO files. If this step fails, see step 1.

Programs that support files with DUO extension

Windows programs
Windows

Step 3: Check the DUO file for errors

Sometimes, although relatively rarely, steps 1 and 2 might not lead to expected results. There can be several reasons for such situation to occur:

  • DUO file has been downloaded from the internet but for some reason it is incomplete. In such case the file should be re-downloaded and opened again.
  • Structure of given DUO file could be corrupted and as such the program is not able to open the file
  • Storage medium on which the file was stored is damaged
  • It is important to ascertain that the icon representing given file is not a shortcut a related DUO file no longer present in the location to which the shortcut points
  • If the user account has restricted access privileges it is advised to contact the system administrator or an IT expert

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