Importing and Exporting
The MacOS version of SamuraiSafe supports import/export of safes in the XML format used by the Java Password Safe App. You could use iCloud to share your safe(s) with MacOS, and then export/import from MacOS.
If you have password file data in CSV format, you can find a CSV to XML conversion tool here: help.samarama.net
Note there are security implications to XML import/export as the plaintext may be stored permanently on your macOS system inadvertently. To ensure any XML files are removed securely use rm -P on the command line to overwrite files before deleting them.