Both .nsf and .nsh files are databases used by Lotus Notes and it is likely that only this program can work with them. However we couldn't find any relevant information if saving the newer .nsf databases to older .nsh files is actually possible. It all depends on the backward compatibility of Lotus Notes.
Convert Lotus Notes database to Lotus Notes database file.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert nsf to nsh on Windows
IBM Notes (formerly Lotus Notes) is a multi-user client-server cross-platform application runtime environment for Lotus Domino/Notes suite. It can be used for many applications as well as for internal communication collaborative applications, including e-mails, calendaring, PIM, instant messaging, Web browsing, and a variety of feature-rich custom applications. It can be used to access both local- and server-based applications and data.
The current version of IBM Notes is 9.
Convert from nsf file
to nsh file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.