Pointing to xls location issue

```
What steps will reproduce the problem?
1.pointing to a directory for a file location that is not in the same location
as where my .php file is located.
2.example:
$data = new
Spreadsheet_Excel_Reader("S:\\BFPIX\\COREASSPROC\\200-104133-010-20100702-01.xls
",true);
3.

What is the expected output? What do you see instead?
I would expect it to point to a new S drive location for the file. however it
considers the entire directory as a filename
The filename S:\BFPIX\COREASSPROC\200-104133-010-20100702-01.xls is not readable

Please provide any additional information below.
```

Original issue reported on code.google.com by `slubr...@gmail.com` on 4 Jun 2012 at 7:18

Reproduce the reported Spreadsheet_Excel_Reader constructor call with the S:\\BFPIX\\COREASSPROC\\...xls path and inspect the file-location handling it reaches. Confirm what path is passed to the readability check, then verify that an XLS file outside the PHP file's directory is accepted.

Written by the indexing model from the issue text.