Which file types does Langdock support?

Complete reference of supported file types in Langdock including text, tabular, image, and audio files with size limits.

Langdock supports the following file types:

Text-based files:

File Type	File Extension	File Size Limit
PDF	.pdf	256 MB
Markdown	.md	10 MB
Text	.txt	10 MB
Word	.docx, .doc, .dotx	256 MB
PowerPoint	.pptx, .ppt, .potx	256 MB
JSON	.json	10 MB
SharePoint Site Pages	.aspx	256 MB
Outlook Email	.msg	256 MB

For text-based files, there’s an additional 8 million character limit that applies alongside the file size limit. So a PDF, for example, can be up to 256 MB in file size or hit the 8 million character limit.

Tabular Files:

File Type	File Extension	File Size Limit
Excel / Google Sheets	.xlsx, .xls, .xlsm, .xltx, .xltm, .xlam, .xlsb	30 MB
CSV	.csv	30 MB
TSV	.tsv	30 MB

Tabular files (Excel, CSV) can only be uploaded directly in chat and agents, not in folders. Spreadsheets in Recent Files support preview with sheet tabs, zoom, column resizing, and formula inspection. For technical details, see tabular files in folders.

Images:

File Type	File Extension	File Size Limit
JPG	.jpg	20 MB
PNG	.png	20 MB
WebP	.webp	20 MB
GIF	.gif	20 MB
TIFF	.tiff	20 MB
BMP	.bmp	20 MB
HEIF	.heif	20 MB
HEIC	.heic	20 MB

Images can be uploaded in chat conversations (including agent chats), but not in folders or agent knowledge.

Audio Files

File Type	File Extension	File Size Limit
Audio files	.mp3, .wav, .ogg, .mpeg, .mp4, .m4a, .vnd.wave	200 MB

Audio files can be uploaded in chat conversations (including agent chats), but not in folders or agent knowledge.