Got it. Alternatively, you can use Python to import the data
import clr
import System
from System.IO import FileInfo
import DSOffice
# Take path string from Dynamo input
path = IN[0]
# Convert to FileInfo object
fileInfo = FileInfo(path)
# Import Excel
data = DSOffice.Data.ImportExcel(fileInfo, "Sheet1", False, True)
# Output to Dynamo
OUT = data