Supported File Types and Attachments

File size and indexing

You can attach a maximum of 1,000 files to a single page with a maximum file size of 268 MB for each attached file.

For files larger than 5 MB, only the file names and descriptions are indexed and not the content of the file. For files 5 MB or smaller, MindTouch indexes the name, description, and content of all supported file types.

Supported file types

• .pdf – Adobe PDFs
• .doc – older MS Word docs
• .docx – newer MS Word docs
• .pptx – newer MS PowerPoint presentations
• .xls – older MS Excel spreadsheets
• .xlsx – newer MS Excel spreadsheets
• .odt – OpenDocument Text
• .odp – OpenDocument Presentation
• .txt – plain text
• .rtf – rich text format files

Supported image extensions

• .png
• .jpg
• .jpeg
• .gif
• .svg

Favicons must be formatted as a .ico file type.

Unsupported file types

For security reasons, certain file extensions are not supported attachment types: 

• .html
• .xhtml
• .htm
• .exe
• .vbs
• .scr
• .reg
• .bat
• .com
• .vsx

This list is not comprehensive and just because a file type is not listed as unsupported does not automatically mean that it is supported.

If you experience issues uploading a file type not listed, save and upload the file as a one of the listed supported extensions. Alternatively, compress the affected attachment as a .zip file and try to upload.