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ET3 file format description

ET3 file format

We made this page to help you understand how to work with ET3 files. Here, you can find info on software that can handle these files. It includes simple programs for opening and converting them.

Learn about the ET3 file and its functions here!

We also explain how to convert them into other types. It's simple and hassle-free. For opening or changing ET3 files, this page offers all the tools you need.

#1 e-Szigno Recorded Delivery Data

The ET3 file is categorized under Other. It is associated with e-Szigno, serving as an e-Szigno Recorded Delivery Data. The e-Szigno is an electronic signature creation application. e-Szigno is widely used by Hungarian barristers, notaries and by various governmental and private organizations in Hungary. Visit the website of e-Szigno for a detailed description of the ET3 format.

Application:e-Szigno
Category:Other files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

e-Szigno Recorded Delivery Data related extensions

  • es3 e-Szigno Signed Document

Did someone accidentally misspell the ET3 filename?

The ET3 filename extension may be misspelled. We compiled a list of similar file extensions to help you find errors.

Filename extensions similar to ET3:

Windows can't open your ET3 file?

When you try to open a file by double-clicking it, Windows looks at the file's name to figure out what to do. If Windows doesn't know the file type, it'll ask you to choose an app to open this ET3 file.

To set the ET3 file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. In the Default apps section, you will find various categories. They include Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate. For example, choose Photos for image files, or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the app you want is not listed, click on More apps to see more options. Or, click on Look for an app in the Microsoft Store to search for apps.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set ET3 file association. Many apps can open files. They don't need a specific file association to be set.

Handle ET3 files with care

Exercise caution when handling ET3 files from unknown sources. Files from certain sources can threaten your computer's security. They might contain malware, viruses, or harmful software. To minimize risks, avoid downloading or opening unfamiliar ET3 files. Use trusted antivirus software to scan files from unknown sources before opening.

If you find the information on this ET3 page useful, please feel free to link to this page.

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