I backed up my SMS an year ago via HTC One phone's messaging application. The backup file that was created on SD card had no extension and its name is "SMS_nai_SD_20160625_701301_0".
I was never able to restore that backup but I now need one of the messages in backup and have already lost the phone. If I open the file in notepad, it starts with "HTCMSGBACKUP_V1" and rest of that are special characters. There is another thread related to same issue that suggests either restore the messages or use emulator. I was wondering is there any other way to handle that if we know the starting characters of the file.