Many applications (e.g., Microsoft Word) use proprietary binary formats to store your documents. Aba cannot reliably replace in such files, because they typically include absolute offsets and other internal counters. The replacement may turn the binary file into inconsistent state, so you will not be able to open it again.
That's why Aba excludes these files from search. At your own risk, you may try to replace in binary files.
Warning: You should keep backups when using this feature. Your files may be corrupted after replacement!
When the length of the original text is equal to the length of the replacement, you will usually succeed. For example, replacing
2010 in a binary file is usually safe (you still need to be careful!).
To perform the replacement in binary files: