A .CSO file is the first type of compression method that was used for compressing the ISO images. It is also known as the Compressed ISO image file, which provides a high level of compression technique to save the memory space. Generally, the CSO file is used to archive the PlayStation Portable games. The CSO disk image file can be compressed up to nine levels, wherein the higher levels of the CSO disk image file depict a greater compression of the ISO image with a lower downloading speed. The CSO file is created by the ISO compressor tools, such as PSP ISO Compressor, YACC to name a few.
When you install one of the applications from the list of programs that you found here, you should be able to open or edit the file with the CSO extension without any issue. However, if you still have problems with this, you may use the option of CSO file conversion to a different format.
We hope we helped you solve the problem with the CSO file. If you do not know where you can download the application from our list, click on the link (which is the name of the program) - you will find more information there on the location where to download the secure setup version of the required application.
There can be more reasons which determine that you are not able to open the CSO file (apart from the lack of the proper application installed).
First - the CSO file may be incorrectly associated with the application installed to support it. In this case, you need to change this association by yourself. To do this, right-click on the CSO file that you want to edit, click "Open with" and then select the program from the list that you have installed. After this operation, the problems with opening the CSO file should be solved.
Second - the file you want to open can simply be damaged. Then, the best solution is to find a new version of given file, or download it again from the same source as before (maybe for some reason in the previous session the download of the CSO file has not been completed and it cannot be opened properly).
If you have additional information about the CSO file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on CSO file.