How to download a file in xlsm format from the server?

Question

PHP

Hello! I download the file with the following code:

header("Content-Type: application/vnd.ms-excel; charset=utf-8");
header("Content-Disposition: attachment; filename=Templ10.xlsm");
echo file_get_contents('uploads/Templ10.xlsm');

But it won't open with the error "The file cannot be opened because the format or extension is invalid." If the same file is downloaded from the server via ftp, then everything works fine.
There is also a problem with encoding. I am trying to download xls file. On the server it contains Russian letters, and after downloading - character sets. Plus all formatting disappears.

Answer 1

Specify an absolute path. It seems that he stupidly cannot find the file.

Answer 2

Pass it right , don't use file_get_contents.
See 3 approach (at most 2)