Permission denied when opening xlsx on linux

[holgerbrandl]

How to reproduce use:

1. Use system with linux OS (observed on ubunu)
2. Use DataFrame.readXls to read any excel file
3. switch to another user account
4. rerun the the same tests

Expected: It should read the file

Observed: It creates a directory called /tmp/poifiles but with just write permission for the first users. So the second attempt from the other account will fail as shown in the screenshots All later users will struggle with this problem until /tmp is cleaned up manually.

[Jolanrensen]

Luckily it's an easy fix :) https://stackoverflow.com/questions/5297911/changing-location-of-temp-files-created-using-apache-poi