Some old MS Office versions used .mso files to store organization charts which could have been used in Excel, PowerPoint or even in Word documents. It is likely that such charts could be exported as JPEG or other pictures, but only in older Office programs as modern editions doesn't seem to support it anymore.
Convert Microsoft Organization Chart chart data to JPEG bitmap image format.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert mso to jpg on Windows
A presentation program from the Microsoft Office suite
Convert from mso file format
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.