09 File - opening and understanding

Did your computer fail to open a 09 file? We explain what they are used for and recommend software that we know can open or otherwise handle your .09 files.

What is a 09 file?

Files with the .09 file extension are most commonly associated with Unknown Apple II files. These files are normally found on Golden Orchard Apple II CD Rom disks.

How to open 09 files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension 09 for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 3 different 09 openers which you will find listed below.

Suggest another file format using extension 09

While we know of one file format using the .09 file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .09 file.

Various viewers for this file format

These apps are known to open certain types of 09 files. Remember, different programs may use 09 files for different purposes, so you may need to try out a few of them to be able to open your specific file.

KuaiZipKuaiZipUser submitted
Microsoft OfficeMicrosoft OfficeUser submitted
ESPRIT ApplicationESPRIT ApplicationUser submitted
We have not verified any software that we know for certain will work with 09-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 09-files. If you know one, please use the 'Suggest a program' link below and tell us about it!