You can check the file extension of the URL of the uploaded file and if its not .xls, then you can throw a msgbox or repsonse.write to inform the user to upload only xls files.
the input type=file's textbox is not settable, i mean you cant set values so may be you can alert the user and once they select a different (excel) file, the url will be overwritten.
if you want the code to check the file extension, i can give you.
On the client side, you can access the path to the file as a string in the
"value" attribute of the "input type=file" field for uploading your file,
prior to submitting the form, as soon as they select it (using the
"onpropertychange" event handler for the "input type=file" element). It is a
string. Check the extension, and don't allow the user to submit the form
unless the form field is empty or the value has the correct file extension.
--
HTH,
Kevin Spencer
..Net Developer
Microsoft MVP
Big things are made up
of lots of little things.
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