Files stay in your browser
CSV and Excel files are opened by the browser on your device. The original files are not uploaded to Matte.
Coming next to the free demo
Your spreadsheets are welcome here.
Bring the inventory files you already use. Matte will help turn them into a clean workspace, with a clear review step before anything is saved.
Free to try. No account or credit card required.
Spreadsheet import
Nothing is saved until you approveReview field matches
Inventory master.xlsx · ItemsProduct nameItem name
Item #SKU
On handQuantity
StockroomLocation
Free in the demoNo account or payment details
Raw files stay localRead on your device by your browser
No spreadsheet data sent to AIAI mapping is blocked in the demo
How it works
From scattered files to a workspace you can explore.
The importer does the repetitive cleanup while keeping you in control of every decision.
- 01
Choose your spreadsheets
Bring one or more CSV, XLS, or XLSX files. The importer is designed for the inventory files your team already uses.
- 02
Matte reads them locally
Your browser opens the files and recognizes common fields like item name, SKU, quantity, location, supplier, and cost.
- 03
You review every match
See exactly how each column will map. Change a match, keep a column as a custom field, or leave it out.
- 04
Approve what gets added
Only the rows you approve are sent to your temporary demo workspace. The original spreadsheet file is not uploaded.
Spreadsheet imports are coming next to the demo. This page describes the workflow and safeguards that will ship with the feature.
Built for a safe trial
Clear boundaries for your data.
You should not have to guess what happens after selecting a file. The demo keeps each boundary visible.
Read Matte's privacy policyNo AI model sees your data
The demo blocks AI-assisted spreadsheet mapping. Spreadsheet data is not sent to an AI provider or used to train a model.
You approve the result
Nothing is added until you have reviewed the field matches and approved the structured rows you want to use.
The workspace is temporary
Approved rows live only in the temporary demo workspace, which is scheduled for deletion when the demo expires.
Nothing hidden
See the handoff before it happens.
The original file and the approved workspace data are two different things. Matte shows you the line between them.
On your deviceOriginal spreadsheets
Files, sheets, formatting, and unapproved columns stay in your browser.
In the temporary demoApproved structured rows
The inventory fields you reviewed are saved so you can explore Matte with familiar data.
FAQ
Questions are a good sign.
Here is the plain-language version of what the demo importer will do and what it will not do.
Is spreadsheet import free in the demo?
Yes. The demo is free, requires no credit card, and does not require you to create a permanent Matte workspace.
Which spreadsheet formats will work?
The demo importer is being built for CSV, XLS, and XLSX files. It will accept up to 10 files at a time, with a 25 MB limit for each file.
Do my original spreadsheet files leave my device?
No. Your browser reads the original files locally. When you approve an import, only the structured row data you reviewed is sent to the temporary demo workspace.
Is any spreadsheet data sent to an AI model?
No. AI-assisted mapping is blocked in the demo. Spreadsheet contents and metadata are not sent to an AI provider through this import flow.
Can I check the data before it is saved?
Yes. Review is a required step. You can confirm or change column matches, keep useful columns as custom fields, and exclude anything you do not want to import.
What happens if a row has a problem?
Matte validates the approved plan before committing it. If validation fails, the import is rolled back so you do not end up with a partly imported workspace.
What happens to my data when the demo ends?
The demo workspace is temporary. When it expires, Matte schedules the workspace and its demo data for deletion, including any rows you imported.
Is this available in the demo today?
Not quite yet. Spreadsheet imports are the next demo feature we are building. The page explains the workflow and safeguards that will ship with it.
Your data, your decision
See Matte with data you recognize.
Explore the free demo today. Spreadsheet imports will be the next way to make that workspace feel like yours.