ES3 File - opening and understanding

Did your computer fail to open an ES3 file? We explain what they are used for and recommend software that we know can open or otherwise handle your .ES3 files.

What is an ES3 file?

An .ES3 file is an e-Szigno signed document file. Through our analysis of ES3 files, we know that one use of the format is e-Szigno signed document. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open ES3 files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension ES3 for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 2 different ES3 openers which you will find listed below.

Suggest another file format using extension ES3

While we know of one file format using the .ES3 file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .ES3 file.

Various viewers for this file format

These apps are known to open certain types of ES3 files. Remember, different programs may use ES3 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

e-Szignoe-SzignoUser submitted
NetLock MOKKANetLock MOKKAUser submitted
We have not verified any software that we know for certain will work with ES3-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with ES3-files. If you know one, please use the 'Suggest a program' link below and tell us about it!