How to open CIR files
Did your computer fail to open a CIR file? We explain what CIR files are and recommend software that we know can open or convert your CIR files.
What is a CIR file?
The CIR file extension indicates to your device which app can open the file. However, different programs may use the CIR file type for different types of data.
While we do not yet describe the CIR 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 CIR 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!
Update info Upload example file
Generic CIR
These apps are known to open certain types of CIR files. Since many different programs may use CIR files for different purposes, you may need to try a few of the apps to open your specific CIR file.
 | PSpice | User submitted |
 | Micro-Cap | User submitted |
 | LTspice IV | User submitted |
 | real PCB | User submitted |
 | Micro-Cap Evaluation dll | User submitted |
 | PSpice A_D | User submitted |
 | T-Spice Pro | User submitted |
 | ISED5 Application | User submitted |
 | OrCAD PSpice | User submitted |
 | LTspice XVII | User submitted |
| AIM-Spice | User submitted |
| TopSpice Demo | User submitted |
| Micro-Cap CQ | User submitted |
| WinSpice | User submitted |
| TopSPICE/Win32 Demo | User submitted |
| Smash | User submitted |
| Evrsoft First Page | User submitted |
| WinASPECT PLUS | User submitted |
| T-Spice | User submitted |
| PowerNet | User submitted |
| NincoTrackMap | User submitted |
| Micro-Cap Working Demo | User submitted |
Try a universal file viewer
Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.