IDL File

What are IDL files and how to open them

Are you having problems opening an IDL 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 an IDL file?

The IDL file extension indicates to your device which app can open the file. However, different programs may use the IDL file type for different types of data.

While we do not yet describe the IDL file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.

We are continually working on adding more file type descriptions to the site, so if you have information about IDL files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!

How to open IDL files

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

While we have not verified the apps ourselves yet, our users have suggested 13 different IDL openers which you will find listed below.

Various apps that use files with this extension

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

progeCAD ProfessionalprogeCAD ProfessionalUser submitted
UntisUntisUser submitted
IDpack DesignerIDpack DesignerUser submitted
AkelPadAkelPadUser submitted
AllFusion Process ModelerAllFusion Process ModelerUser submitted
Microsoft Visual Studio CTPMicrosoft Visual Studio CTPUser submitted
IQANdevelopIQANdevelopUser submitted
AViCAD ProfessionalAViCAD ProfessionalUser submitted
JBuilderJBuilderUser submitted
JuggernautJuggernautUser submitted
Licensing InformationLicensing InformationUser submitted
MasterClips MediaPaq BrowserMasterClips MediaPaq BrowserUser submitted
OAGTPOAGTPUser submitted

Try a universal file viewer

Try a universal file viewer like Bitberry File Opener. It can open 410 different types of files - and most likely yours too. Download Bitberry File Opener here.

Help us help others helps thousands of users every day, and we would love to hear from you if you have additional information about IDL file formats, example files, or compatible programs. Please use the links below or email us at to discuss further.