Spreadsheets & data · ONLINE TOOL

Data contract & recurring deliveries

Turn an approved format into reusable rules, validate each new delivery and jump back to mapping when the schema needs adaptation.

Local processingNo account required

USE CASES

When to use Data contract & recurring deliveries?

Second step of the delivery flow: turn an already approved format into a reusable contract, validate future files against the same explicit rules, and send schema deviations straight back to the Mapper.

Secure a recurring monthly import
Share an expected format with a supplier
Detect missing columns, invalid types, duplicates and out-of-list values

CONCRETE EXAMPLE

Approved reference → next delivery

Sample file

BEFORE

Reference: employee_id, email, status, department
Next delivery: duplicate ID, invalid email, unknown status

→

AFTER

Reusable JSON contract + row/column/rule report + explainable validation

PRIVACY

Your data stays in the browser

Processed content is not uploaded to WorkToolset. Required libraries may be loaded by the site, but the file stays in the browser.

GOOD TO KNOW

Limitations to know

Rules are inferred from a sample and should be adjusted when the reference does not cover every allowed case.
A technical contract does not replace business rules absent from the data.

HOW IT WORKS

A straightforward workflow.

1Prepare the required input and choose useful options.
2Review previews, warnings and limitations before export.
3Download a new copy or report: the original stays unchanged.

PRIVACY

Frequently asked questions

Are my files uploaded to WorkToolset?

No. This tool runs locally in your browser.

Is my original file modified?

No. WorkToolset creates a new copy or export.

Do I need an account?

No for this free tool. Accounts are mainly used for favorites, presets and future workflows.