.xls is not readable

```
What steps will reproduce the problem?
1.when i upload xls file using php in mysql,In localhost or server it upload
but wher i upload other server error will be display.
2.It can display server error also like:-

Server error
The website encountered an error while retrieving
http://chatterpatter.com/price_india/site_admin/admin/excel/car_price_upload.php
. It may be down for maintenance or configured incorrectly.
Here are some suggestions:
Reload this web page later.
HTTP Error 500 (Internal Server Error): An unexpected condition was encountered
while the server was attempting to fulfill the request.

3.Plz tell me which setting i can change in php ini file or my code.

```

Original issue reported on code.google.com by `skjangid...@gmail.com` on 21 May 2011 at 7:50

Attachments:
- [2.rar](https://storage.googleapis.com/google-code-attachments/php-excel-reader/issue-117/comment-0/2.rar)

Start with the uploaded 2.rar attachment and the car_price_upload.php entry point mentioned in the report. Reproduce the .xls upload on the affected server, then inspect the PHP error behind the HTTP 500 and compare its PHP configuration with the working environments. Done means the .xls upload works on the reported server without an internal server error.

Written by the indexing model from the issue text.