Supported File Formats

The following table provides a list of the item types and formats that Coveo can index. Items of unsupported formats can be indexed by reference or using indexing pipeline extensions.

Document type File extension Details

Adobe Acrobat


Version 1.0 to 1.7 inclusively

ePub files


Must be indexed by content

Google Docs, Google Slides, and Google Sheets files

.doc, .ppt, .xls

Text documents, slides, and spreadsheets created with the Google Docs Editors suite appear as Microsoft files in the search results. Clicking an item link opens this item in Google’s web application.

Image files (text extraction)

.bmp, .jpeg, .max, .pcx/.dcx, .pdf, .png, .tiff, .tiff-fx

Requires enabling optical character recognition (OCR)

Image files (metadata extraction)

.bmp, .emf, .exif, .gif, .icon, .jpeg, .png, .tiff, .wmf

Creation of thumbnail

Microsoft Excel

.xlam, .xlb, .xlm, .xls, .xlsm, .xlsx, .xltm, .xltx

Version 2013, 2010, 2007, 2003, 2000, 97, 95, 5.0

Indexes Excel 2013, 2010 attachments.

Microsoft Outlook files

.msg, .oft, .pst

Message, archives, and templates

Microsoft PowerPoint

.pot, .potm, .potx, .ppam, .pps, .ppsm, .ppsx, .ppt, .pptm, .pptx

Version 2013, 2010, 2007, 2003, XP, 2000, 97

Indexes PowerPoint 2013, 2010 attachments.

Microsoft Word

.doc, .docm, .docx, .dot, .dotm, .dotx

Version 2013, 2010, 2007, 2003, XP, 2000, 98 (for Mac), 97, 95, 6.0, 6.0 (for Mac)

Indexes Word 2013, 2010 attachments.

MIME documents

.email, .eml, .ews, .mime

Rich text Format


Text documents

.ascx, .bat, .cmd, .config, .csv, .dic, .exc, .inf, .ini, .js, .jsl, .log, .nfo, .scp, .sdl, .sln, .txt, .vbdproj, .vbs, .vdp, .vdproj, .vjp, .vjsproj, .vjsprojdata, .wsdl, .wsf, .wtx, .xsd


Coveo can index any file format that contains only text, even if its extension isn’t listed above.

ANSI, ASCII, Unicode

Web pages

.asp, .aspx, .cgi, .col, .dochtml, .dothtml, .fphtml, .hta, .htm, .html, .jsp, .php, .pothtml, .ppthtml, .shtm, .shtml, .xlshtml

When parsing .html files, Coveo converter ignores the sections that contain the following tags: select, option, script, strike, style, ?xml, applet, bdo, del, object, s, noframes


.wp, .wpd, .wpf

Versions 5 to 10 inclusively

XML documents


XML style sheets

.xsl, .xslt