How to open COW files

Did your computer fail to open a COW file? We explain what COW files are and recommend software that we know can open or convert your files.

What is a COW file?

COW files are Copy On Write disk image files, which you can read more about below.

The COW file extension indicates to your device which app can open the file. However, different apps may use the same file extension for different types of data. So a COW opener may not be able to open all kinds of COW files. In this case, though, we only know of one specific use.

Copy On Write disk image

Through our analysis of COW files, we know that one use of the format is Copy On Write disk image. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

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

COW file openers, viewers, etc.

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

DNADynamoDNADynamoUser submitted
Circle Of Wealth SystemCircle Of Wealth SystemUser submitted
SnapGene ViewerSnapGene ViewerUser submitted
We have not verified any programs that we know for certain can work with COW-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with COW-files. If you know one, please use the Suggest link below and tell us about it!