Office 2016 Cannot Open Attachments November 4th, 2015 Computer Tips, Microsoft Office, Security I upgraded to the Office 2016 products and thinking back; it was at that time I could no longer open an excel or word document from my outlook. In either case, double-click the attachment to open it. To open an attachment from the message list, right-click the message that has the attachment, click View Attachments, and then click the name of the attachment. You can preview attachments in HTML or plain text messages in the Reading Pane and in open messages. You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number. Site Feedback. Tell us about your experience with our site. SherryBarbosky Created on June 13, 2017. Can't open attachments in Office 365. Get attachments of an Outlook item from the server.; 9 minutes to read; In this article. An Outlook add-in cannot pass the attachments of a selected item directly to the remote service that runs on your server. Instead, the add-in can use the attachments API to send information about the attachments to the remote service.
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![]() Problem
When Office 365 users try to open or view attachments in email messages in Outlook Web App, they experience the following symptoms:
Cause![]()
This issue occurs if the attachment is blocked by Outlook Web App. By default, Outlook Web App blocks attachments that have the following file name extensions:
.vsmacros, .msh2xml, .msh1xml, .ps2xml, .ps1xml, .mshxml, .gadget, .mhtml, .psc2, .psc1, .msh2,.msh1, .aspx, .xml, .wsh, .wsf, .wsc, .vsw, .vst, .vss, .vbs, .vbe, .url, .tmp, .shs, .shb, .sct,.scr, .scf, .reg, .pst, .ps2, .ps1, .prg, .prf, .plg, .pif, .pcd, .ops, .mst, .msp, .msi, .msh,.msc, .mht, .mdz, .mdw, .mdt, .mde, .mdb, .mda, .maw, .mav, .mau, .mat, .mas, .mar, .maq, .mam,.mag, .maf, .mad, .lnk, .ksh, .jse, .its, .isp, .ins, .inf, .htc, .hta, .hlp, .fxp, .exe, .der,.csh, .crt, .cpl, .com, .cmd, .chm, .cer, .bat, .bas, .asx, .asp, .app, .adp, .ade, .ws, .vb, .js
SOLUTIONMicrosoft Outlook On Mac Can't Open Contact Attachments On Windows 10
Change the Outlook Web App mailbox policy to include and exclude the file types that you want.
The following is an example of the Windows PowerShell commands to remove the .xml file type from the BlockedFileTypes and BlockedMimeTypes lists and add it to the AllowedFileTypes and AllowedMimeTypes lists:
Things to consider:
Workaround
Direct users to compress the files that they intend to send (for example, as a .zip file) and then send the compressed files as attachments.
Microsoft Outlook On Mac Can't Open Contact Attachments On ComputerMore information
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