The application to divide Microsoft Word files generates an error 0, when finishing loading the file, it does not allow you to choose whether to split a document by pages or by megabytes.
Can you please share which application you are referring to here? This will help us investigate the issue and assist you further.
We have tried this at our end with sample files and the functionality seems to be working without any issue. Can you please share your sample Word file that you are trying to split and getting this error? This will help us reproduce the issue and provide further assistance.