Exchange Import Tool
STEP 1: First screen will be the Welcome screen, from there click Import option
STEP 2: Screen will give 4 options: Add file(s), Add folder, Remove, Search Network
STEP 3. Select Add file(s) option.
STEP 4: Select PST and click on Open.
STEP 5: The PST file will be enlisted and enter the name of mailbox in Mail Nick Name column
STEP 6: Select Import option to begin the process
STEP 7: Next screen will give the status of the import process.
STEP 8: At the end of the whole process, Click OK.