Upload documents, folders and email
Last updated: October 9, 2026
Add documents to a matter from your computer, a folder, a ZIP archive or a connected storage service. This guide explains how to upload files, check warnings and start processing.
Uploading files and folders
Open the matter and select + Add files.
Drag files or folders into the upload area, or select them from your computer.
Review the files Mary has detected. Original folder paths are preserved.
Open Needs Attention and check any warnings or rejected files.
Select Process when you are ready to process the files.
When setting up a matter, select Finish & Generate to start processing. Credits are deducted after the pages have fully processed.
Supported file types
You can upload:
Documents: PDF, DOC and DOCX
Spreadsheets: XLS and XLSX
CSV: CSV
Emails: EML and MSG
Archives: ZIP
Images: PNG, JPG, JPEG, BMP and WebP
See Supported files and upload limits for the format and capacity reference.
Uploading ZIP archives
Upload a ZIP archive directly; you do not need to extract it first. Mary preserves its internal folders and paths, including nested folders, so you can see where each file originally appeared.
The archive can contain a mixture of supported documents, spreadsheets, emails, images and folders. Files inside it are identified and processed individually according to their type.
Add the ZIP archive directly; Mary preserves the folders within it. Open image at full size
Uploading emails and attachments
Use EML or MSG files to preserve supported email threads and attachment relationships. You can review the email content, earlier messages in the thread and related attachments together.
Folder and attachment relationships remain visible. Ready files are awaiting processing; they are not yet Done. Open image at full size
Uploading spreadsheets and CSV
Upload XLS, XLSX, and CSV files alongside the other documents in the matter.
Mary estimates their page count by converting its content into an approximate page equivalent. The processed page count may differ from the number of visible tabs or printed sheets.
Importing from Google Drive or OneDrive
Where the connection is enabled for your organisation:
Open the matter and select + Add files.
Choose Google Drive or OneDrive.
Sign in or authorise access if prompted.
Select the files to import and review the selection.
Check any warnings, then select Process.
Choose the upload source available for your organisation. Open image at full size
For other providers or help finding the right source location, see Import documents from connected tools.
Upload capacity
Up to 5,000 files in one upload batch
Up to 50,000 pages in one processing batch
Up to 10,000 pages in an individual file
Up to 500 MB per ordinary file
Up to 2 GB per ZIP archive
Up to 5 GB of files awaiting upload at one time
Divide larger collections into smaller batches before uploading.
Managing an upload
You can navigate away from the matter while an upload is in progress. The upload controls let you:
pause or resume an upload;
cancel an upload;
retry a failed file;
remove and re-add a file;
rename a file; or
delete a file from the pending upload.
If a temporary connection issue interrupts the upload, Mary attempts to resume it. Return to the matter to check progress and manage any affected files.
Skipped, rejected and duplicate files
Mary checks the file's actual format, not just its filename extension. Read the displayed reason before retrying a rejected or skipped file. Reasons can include an unsupported format, damage or an invalid file, an upload limit, password protection or a duplicate.
Duplicate detection considers both the filename and folder location. Files with the same name can be retained when they come from different locations in the original folder or ZIP structure.
Read the reason beside each rejected file before taking the next step. Open image at full size
For file-specific checks, use Upload and processing troubleshooting.
Viewing documents in Mary
In newly created matters, supported files open in their native format in Mary's side-by-side viewer. You can review spreadsheets, email threads and attachments, and Word documents with tracked changes and comments alongside the work and its citations.
Older matters use the PDF-based viewer, including for newly added files. The supported formats, upload interface and limits in this guide still apply when adding files to those matters.
Read the cited email alongside the answer and check its surrounding context. Open image at full size
Get help with an upload
Check the reason beside the affected file. If you need help, contact Mary support through the in-app chat or at support@marytechnology.com. Include the matter reference, upload source, exact error and approximate time.