## Not run:
#
# # supposing that the data file sample.txt is in the current directory
# file <- "grid.xlsx"
# imp <- importExcelInternal(file)
#
# # specifying a directory (arbitrary example directory)
# dir <- "/Users/markheckmann/data"
# imp <- importExcelInternal(file, dir)
#
# # using a full path
# imp <- importExcelInternal("/Users/markheckmann/data/grid.xlsx")
# ## End(Not run)
Run the code above in your browser using DataLab