uploading .xls files

[xzilla]

I have a simple file upload script that parses files that are uploaded via fopen. Everything works great on .txt, .csv, .upl, whatever, but when I try to upload a .xls, it errors out specifying non valid file pointer and refrences the file "none" (a good indecation something is wrong) Is there a special issue with uploading .xls type files?

[Anon]

dunno

[Anon]

i upload xls files all the time via php.

my guess would be to check the code that "parses files that are uploaded via fopen" and ensure IT takes xls into account.

this may also be a header issue if you are dealing with viewing the file