How to open P21 files
Did your computer fail to open a P21 file? We explain what P21 files are and recommend software that we know can open or convert your P21 files.
What is a P21 file?
The P21 file extension indicates to your device which app can open the file. However, different programs may use the P21 file type for different types of data.
While we do not yet describe the P21 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 P21 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 P21 openers
These apps are known to open certain types of P21 files. Since many different programs may use P21 files for different purposes, you may need to try a few of the apps to open your specific P21 file.
|Autodesk SXF Viewer||User submitted|
|it'sCAD MAX||User submitted|
|FILDER RiseS||User submitted|