File format not support

[doodoofan]

Hi,

I have problem uploading files *.bmp, whenever I upload bmp files it always appear error and files could not be uploaded. It works for jpg only. What should I do?

Thanks in advance 

[Joachim Müller]

First of all, you shouldn't use bmp at all on the internet, it simply isn't suitable for use on the internet. Save it on your client as jpg and then upload it (don't just rename it, but open it with a suitable app like MS Paint and use the "save as" dialog).
You can't use bmp if you have GD set as method for resizing images; only ImageMagick has support for exotic files like bmp or tif. GD only supports jpg, png and gif.