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

What is an EFIRES file?

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

While we do not yet describe the EFIRES 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 EFIRES 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!

Various EFIRES file openers, viewers, etc.

We have not yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!

Try a universal file viewer

Since we do not have any programs listed that we have verified can open EFIRES files, we suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too! Download Free File Viewer.