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Home/ Questions/Q 1050413
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Editorial Team
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Editorial Team
Asked: May 16, 20262026-05-16T16:46:02+00:00 2026-05-16T16:46:02+00:00

I have generated .xlsx reports on server, and page with direct links to these

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I have generated .xlsx reports on server, and page with direct links to these reports.
When user clicks a link, report file is downloaded, but file extension is changed to .xls.
Therefore, I can’t open file correctly, only after changing of extension.
Problem occurs in IE, Firefox correctly downloads file, and Chrome saves file with name “File.xlsx.xls”

What can cause such behaviour? Any help appreciated.

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  1. Editorial Team
    Editorial Team
    2026-05-16T16:46:03+00:00Added an answer on May 16, 2026 at 4:46 pm

    Problem fixed with setting of mime-type “application/vnd.openxmlformats-officedocument.spreadsheetml.sheet” for .xlsx files

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