Foreach loop container import error

Hi, I am trying to append multiple excel source files into one destination ,I used Foreach loop container and here I tried with variable to reed the source files one by one dynamically... My Pkg got run successfully but when I tried with only one source file I got the right out put,when I tried with 2 source files My Pkg got run successfully but I got No of row wrong (lesser then actual count) Please suggest me... Thanks in advance Kandan.M