Technical Limitations & File Specifications in Noxtua
Check the file limits for Chat, Matrix analysis, Projects and Templates, and see which document formats Noxtua supports.

Large document sets are common in legal work. If you hit a file limit halfway through a task, you have to split or restart your work.
This article lists the technical limits for each area of Noxtua in one place. Check it before you start a larger task, so you can choose the area that matches the number and type of your documents.Use the overview table for a quick check, or go to the section for the area you are working on.
Overview
Area | Maximum number of files | Maximum size per file |
Chat | 15 per chat | 50 MB |
Matrix analysis | 50 per matrix | 50 MB |
Projects | 100 in the Project Knowledge | 50 MB |
Templates | 15 in the Knowledge Sources | 50 MB |
Please note: There is no hard limit on the number of chat messages, templates, or
matrices you can create.
Chat
You can add up to 15 documents to a single chat. Each file can be up to 50 MB in size.
If you need to work with more documents at once, use Matrix analysis.
Matrix analysis
You can add up to 50 documents to a single matrix. Each file can be up to 50 MB in
size.
Learn more about Matrix analysis – https://academy.noxtua.com/posts/matrix-intro
Projects
You can upload up to 100 files to Project Knowledge, with each file up to 50 MB.
Learn more about Projects – https://academy.noxtua.com/posts/projects
Templates
The Knowledge Sources of a template accept up to 15 files, each up to 50 MB in
size.
Learn more about Templates – https://academy.noxtua.com/posts/templates-intro
Supported document formats
Noxtua supports the following document formats:
File Type | Extensions |
Text | .txt, .csv, .tsv, .rtf, .html, .xml, .md |
Excel (new) | .xlsx |
Excel (old) | .xls |
Images | .png, .jpg, .tiff, .bmp, .webp |
Word / Presentation | .doc, .docx, .odt, .pptx |
.eml, .msg |
Please note: Citations within documents are shown only for Word and PDF
files. Use Word or PDF whenever you need to trace answers to the exact passage in
your documents.

Lina Hauschild