Hi,

 

First u install the excel add ins present in QC,then you will get the option upload to TD of ur excel sheet under tools.Then click on tools..then rest is self explanatory u follow the steps u will find.
Give the path name in QC,in which folder structure u want to keep ur test cases in a column for each test case.

But inorder to upload we nedd to convert the excel test cases to a readable format by QC .