How to open a huge excel file efficiently

Question

I have a 150MB one-sheet excel file that takes about 7 minutes to open on a very powerful machine using the following:

# using python
import xlrd
wb = xlrd.open_         


        

Answer 1

I would like to have more info about the system where you are opening the file... anyway:

look in your system for a Windows update called
"Office File Validation Add-In for Office ..."

if you have it... uninstall it...
the file should load much more quickly
specially if is loaded froma share