Unless you use the -i switch with the /hsave command, it will always save the information in a text format. I simply use the .hsh extension so that I know that the file was made for a hash table.

These files can be directly edited, but the edit won't affect the information in the hash table until the file is loaded into the hash table using the /hload command.

So, if you want to manually edit the file, use the word processor of your choice, then save the file in a DOS text format (You may need to use the Save As option), then use /hload to load the edited file into the hash table.