You see the issue is not one of wrong application of the scientific method. (religion.blogs.cnn.com)
If you find that an application on your PC does try to open the ABW file but it's the wrong application or if you would rather have another installed program open ABW files, see our How to Change the Default Program for a Specific File Extension guide for making that change in Windows. (lifewire.com)
Did the bank somehow reject the wrong application? (effectify.com)