1. The welcome screen of the Import OST to Thunderbird tool
2. Adding OST file for Thunderbird import
3. Previewing OST data before importing to Thunderbird
4. Choosing MBOX format for saving OST data
5. Filtering MBOX data before Thunderbird import
6. Importing MBOX file to Mozilla Thunderbird
7. OST to Thunderbird import process in progress
8. Successful completion of OST to Thunderbird import