AI Search Gap: Supported MIME Types for embedding files - #810
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Expanded the "Specifying the MIME Type" section with: Clarification that EmbeddedFile.MimeType accepts any standard IANA MIME type string and defaults to "application/octet-stream". A reference table of common MIME types (.pdf, .docx, .doc, .xlsx, .xls, .txt, .xml, .csv, .png, .jpeg). Important distinction between modern OpenXML types (.docx as application/vnd.openxmlformats-officedocument.wordprocessingml.document, .xlsx as application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) and legacy Office binary types (.doc as application/msword, .xls as application/vnd.ms-excel). A complete C# code example demonstrating embedding multiple files with their respective file names and MIME types.
YoanKar
approved these changes
Sep 9, 2026
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Expanded the "Specifying the MIME Type" section with: Clarification that EmbeddedFile.MimeType accepts any standard IANA MIME type string and defaults to "application/octet-stream". A reference table of common MIME types (.pdf, .docx, .doc, .xlsx, .xls, .txt, .xml, .csv, .png, .jpeg). Important distinction between modern OpenXML types (.docx as application/vnd.openxmlformats-officedocument.wordprocessingml.document, .xlsx as application/vnd.openxmlformats-officedocument.spreadsheetml.sheet) and legacy Office binary types (.doc as application/msword, .xls as application/vnd.ms-excel). A complete C# code example demonstrating embedding multiple files with their respective file names and MIME types.