Email, Messaging, & Video Calls Email Attachment Types Supported for Viewing in Gmail Preview Gmail attachments in your browser without downloading them by Heinz Tschabitscher Writer A former freelance contributor who has reviewed hundreds of email programs and services since 1997. our editorial process Heinz Tschabitscher Updated on April 04, 2020 Email Gmail Yahoo! Mail Tweet Share Email In Gmail, it is possible to view some attachments in your browser without having to download them first. Learn how to open text documents, spreadsheets, PDFs, and other attachment types supported for viewing in your Gmail inbox. Information in this article applies to the web versions on Gmail. How to Preview Attachments in Standard Gmail In the standard web version of Gmail, you can open attachments using the Google Docs Viewer, the same pop-up window used on Google Drive. While viewing a message in Gmail, click on the preview of the attachment to open it. If the file type is supported, it will open in the Docs Viewer. Attachments Supported in Google Docs Viewer Gmail allows you to send almost any file type as an attachment, but only certain files can be previewed within your browser. Supported Microsoft File Types File Type Extension Microsoft Word documents .doc and .docx Microsoft Excel spread sheets .xls and .xlsx Microsoft PowerPoint presentations .ppt and .pptx XML paper specifications .xps Supported Adobe File Types File Type Extension Adobe PDF documents .pdf Autodesk AutoCad graphics .dxf Adobe Illustrator graphics .ai Adobe Photoshop images .psd Postscript files .eps and .ps Scalable vector graphics .svg TrueType files .ttf Other Supported File Types File Type Extension Archive files .zip, .rar, .tar, and .gzip Audio files .mp3, .mpeg, .wav, and .ogg Image files .jpeg, .jpg, .png, .gif, .bmp, and .tif Video files .webm, .mpeg4, .3gpp, .mov, .avi, .mpegps, .wmv, and .flv Text files .txt How to Preview Attachments in Gmail Basic The simple HTML version of Gmail doesn't support the Google Docs Viewer, but you can view certain attachments as HTML before you download them. Select View as HTML under the attached file. If supported, the file will open in a separate window. Attachments Supported for Viewing as HTML in Basic View The following file types are supported for viewing as HTML in Gmail Basic: File Type Extension Microsoft Word documents .doc and .docx Microsoft Excel spread sheets .xls and .xlsx Microsoft PowerPoint presentations .ppt and .pptx OpenOffice/StarOffice documents .sxw Open Office/Star Office spread sheets .sxc Open Office/Star Office presentations .sxi Star Writer documents .sdw Star Calc spread sheets .sdc Star Impress presentation .sdd Adobe PDF documents .pdf Archive files .zip and .rar More from Lifewire How to Preview Gmail Attachments Without Leaving the Message Send a File Attachment With Gmail How to Switch to Gmail Basic's Simple HTML View How to Attach Emails in Gmail How to View Pictures on Your PC or Mac How to Download Attachments From Outlook Mail at Outlook.com View the Source of a Message in Gmail Message and Attachment Size Limits in Gmail How to Use Gmail With DropBox Add-On How to Go to the Next or Previous Message Quickly in Gmail 9 Best Free Microsoft Office Alternatives How to Save Attachments to Google Drive from Gmail How to Use Gmail: Get Started With Your New Gmail Account How to View the HTML Source in Google Chrome Automatic Print Email 3.0 Tool Review What Is an ODS File?