DSE File Type

- The quick facts

What are DSE files and how to open them

Are you having problems opening a DSE file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a DSE file?

A .DSE file is a Dyalog APL Session file. These DSE files contain the projects created in Dyalog APL, a programming language used by subject matter experts and IT specialists. Dyalog APL allows you to develop applications, build interfaces and presentations, develop web applications, and process data by using standard libraries.

How to open DSE files

Important: Different programs may use files with the DSE file extension for different purposes, so unless you are sure which format your DSE file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested 3 different DSE openers which you will find listed below.

Last updated: March 16, 2021

Other file formats using extension .DSE

While Dyalog APL Session is a popular type of DSE-file, we know of 3 different uses of the .DSE extension. Different software may use files with the same extension for different types of data.

Klasik Spreadsheet Export Driver

These DSE files contain export drivers for Klasik, a Microsoft Office-like application for MS-DOS by Optimal s.r.o. They are used to enable export of data in various formats.

While we have not verified the apps ourselves yet, our users have suggested 3 different DSE openers which you will find listed below.

WhatsUp Gold Virtual Device

Through our analysis of DSE files, we know that one use of the format is WhatsUp Gold Virtual Device. 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.

While we have not verified the apps ourselves yet, our users have suggested 3 different DSE openers which you will find listed below.

Various apps that use files with this extension

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

DAZ StudioDAZ StudioUser submitted
RealityRealityUser submitted
DSEConfigSuiteDSEConfigSuiteUser submitted
We have not verified any software that we know for certain will work with DSE-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 DSE-files. If you know one, please use the 'Suggest a program' link below and tell us about it!