What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.

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    Can you configure mime type of your server to handle Microsoft Word 2007/2010 fomat .docx?

    Asked by hzhou on March 27, 2012 at 09:17 AM

    When we tried to download a Word file with .docx extension, it's treated as .zip. Thanks

    Page URL:

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    Answered by gori-mathew on March 27, 2012 at 09:30 AM


    This problem occurs only with Internet Explorer on computers with Microsoft Office installed. It is a recurring problem, not just with Jotform, but with other services as well. IE is having a hard time identifying the application to open the file, thus it resorts to downloading the xlsx and docx documents as .zip files.

    The easiest way to overcome this issue is to use another browser such as Mozilla Firefox or Google Chrome. Try using any of the two browsers to download your files and let us know if it helps or not.

    One possible solution might to convert it to doc format using this:


    Thanks for using jotform, lets know on progress

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    JotForm Support

    Answered by jonathan on March 27, 2012 at 09:35 AM


    Are you referring to this link ?


    When I click on it, my browser was able to recognize the file type just fine.
    I think there must be some security setting in your browser that is preventing the file from being automatically opened as 'known' type.





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    Answered by hzhou on March 28, 2012 at 09:09 AM

    Many clients are still using IE 8 with MS Office 2007. Per Microsoft, you need to add the mime type to the sever configuration.

    (1) MS IIS Server http://blogs.msdn.com/b/vsofficedeveloper/archive/2008/05/08/office-2007-open-xml-mime-types.aspx

    (2) Apache server -

    AddType application/vnd.ms-word.document.macroEnabled.12 .docm
    AddType application/vnd.openxmlformats-officedocument.wordprocessingml.document docx
    AddType application/vnd.openxmlformats-officedocument.wordprocessingml.template dotx
    AddType application/vnd.ms-powerpoint.template.macroEnabled.12 potm
    AddType application/vnd.openxmlformats-officedocument.presentationml.template potx
    AddType application/vnd.ms-powerpoint.addin.macroEnabled.12 ppam
    AddType application/vnd.ms-powerpoint.slideshow.macroEnabled.12 ppsm
    AddType application/vnd.openxmlformats-officedocument.presentationml.slideshow ppsx
    AddType application/vnd.ms-powerpoint.presentation.macroEnabled.12 pptm
    AddType application/vnd.openxmlformats-officedocument.presentationml.presentation pptx
    AddType application/vnd.ms-excel.addin.macroEnabled.12 xlam
    AddType application/vnd.ms-excel.sheet.binary.macroEnabled.12 xlsb
    AddType application/vnd.ms-excel.sheet.macroEnabled.12 xlsm
    AddType application/vnd.openxmlformats-officedocument.spreadsheetml.sheet xlsx
    AddType application/vnd.ms-excel.template.macroEnabled.12 xltm
    AddType application/vnd.openxmlformats-officedocument.spreadsheetml.template xltx

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    JotForm Support

    Answered by idarktech on March 28, 2012 at 10:18 AM


    Apologies for the inconveniences caused.

    I will now pass this issue to our development team to have them check about this. They will reply to this thread once they come up with solution or if this problem is totally fixed.

    Please stay tuned for updates. Thanks.

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    Chief Technology Officer

    Answered by eee on March 31, 2012 at 05:13 AM


    On our servers, we already have these mime-types configured in the configuration.

    I see that your problem is related with our file holder (AmazonS3) and it was temporary. 

    I have checked with all common browsers to re-create the problem, but I have failed.

    I hope it's solved on your end,too.

    Kindest Regards,