Hi, I want want to read excel files that are located in subfolders in my directory. More specifically, I have different street names that are located in a folder named "Street names". In this folder I have circa 100 various folders, each folder containing an excel file with one sheet. The excel files contain hourly based energy data during three years. Moreover, I want to sum the energy use on a yearly basis. See attached file for snap picture of an example of the search path. Note that the directory is located in Matlab_signatur.