there is an option in Test director advance version 8.0 in 
that in file menu there is import file option 

click on that and give the path where it is the path click 
on ok

Go to Add In menu in Test Director , 
Find the Excel Add in,  
And Install it in you machine. 
Now open Excel, 
Click on Tools > export to TD and follow the steps.

Enter
1. URL of Test director. 
2. Domain name and Project Name 
3. User name and Password
4. Select any one of these 3 options:  requirement or test 
case or defects
5. Select a Map option. A. selects a map    b.  Select a 
new map name   c.  Create a temporary map
6. Map the TD to Corresponding Excel. Map the field 
whatever you mentioned in Excel.
7 & 8 are not required; those pages will be shown by TD as 
process and exported successfully. 
These are the required steps to export excel into TD.

Same as above