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Editorial Team
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Asked: 2026-05-21T16:39:52+00:00

I am printing excel like this: header(Content-Type: application/vnd.ms-excel; charset=utf-8); header(Content-type: application/x-msexcel; charset=utf-8); header(Content-Disposition: attachment;

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I am printing excel like this:

header("Content-Type:   application/vnd.ms-excel; charset=utf-8");
header("Content-type:   application/x-msexcel; charset=utf-8");
header("Content-Disposition: attachment; filename=".str_replace(' ', '_', $title).".xls"); 
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false);

The content is plain html. The problem, when I download this, I get an initial confirmation box written

The file you are trying to open 'File_name.xls', is in a different format than specified by the file extension. Verified that the file is not corrupted and is from a trusted source before opening the file. Do you want to open the file now?

When I do ‘yes’, I get this. Bit strange, any input here friends please ?

enter image description here

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1 Answer

  1. Editorial Team

    Well, this one suddenly got solved, I don’t know how.

    This is what I did. I copied and pasted codes of a different page where the excel thing was working. Then, I changed the variables manually to adapt this with the 2nd page.

    After some hit and try, it suddenly worked.

    Thanks for all the answers anyway.

    PS. By solved, I mean that excel is not crushing anymore, though I am still getting the confirm box about incorrect format.

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