Where is the file stored after i run it? This is what I got.
Code:
C:\Users\Damastah>C:\Users\Damastah\Downloads\yaffs-mmssmsdb-calls-extractor\ext
ract.exe -s D:\S3_recovery\mmssms.db
Read 1782 messages
Save as (empty=sms-20130330111807.xml): y
The software is a bit confusing. The "Save as (empty=sms-20130330111807.xml):" doesn't ask to confirm the save with y or n commands, it simply asks for a name of the .xml file.
So in your case your .xml file was either saved at "C:\Users\Damastah>" or "C:\Users\Damastah\Downloads\yaffs-mmssmsdb-calls-extractor\ext" (not quite sure) as an .xml file called "y".
You should have located the file, rename it to [something].xml and copied it to your phone, then use SMS Backup & Restore to import the file.
For other users, just add your preferred file name at the command prompt "Save as (empty=sms-20130330111807.xml): ", e.g. MyContacts.xml.