excel-to-json►json-to-excel►sheet-to-doc

Building a Complete Data Pipeline Excel to JSON to Word Contracts, 1000 Documents in 10 Minutes

The Problem: How Do You Move One Excel Sheet Through Three Systems?

Many companies run their business like this:

  1. The sales team records client details and contract terms in Excel
  2. The backend system needs JSON data to integrate with the CRM
  3. The legal team needs to generate formal Word contracts from those same terms

The traditional approach: manually export three times, adjust formats individually. It’s slow, error-prone, and nobody enjoys it.

Let’s show you how to build a complete automated pipeline using three WTSolutions tools — turning one Excel sheet into data flowing through three systems seamlessly.

The Tool Stack

Step Tool What It Does Platforms
Step 1 Excel-to-JSON Excel spreadsheet → structured JSON Web / Excel Add-in / WPS Add-in / Local App
Step 2 Data Transfer Push JSON to backend API Any HTTP client
Step 3 JSON-to-Excel API response → Excel for review Web / Excel Add-in / WPS Add-in / Local App
Step 4 Sheet-to-Doc Excel data → batch Word contracts Web / Excel Add-in / WPS Add-in / Local App

Step 1: Excel-to-JSON — Turn Your Spreadsheet into API-Ready Data

Imagine your sales team maintains a sheet like this:

Client Product Quantity Unit_Price Total Contract_ID
Shanghai ABC Corp Cloud Service A 50 2000 100000 CT-2026-001
Beijing XYZ Group Cloud Service B 30 3500 105000 CT-2026-002
… … … … … …

Open this in Excel-to-JSON, select “Flat Mode,” and click Convert. In seconds, you get:

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[
  {
    "Client": "Shanghai ABC Corp",
    "Product": "Cloud Service A",
    "Quantity": 50,
    "Unit_Price": 2000,
    "Total": 100000,
    "Contract_ID": "CT-2026-001"
  },
  {
    "Client": "Beijing XYZ Group",
    "Product": "Cloud Service B",
    "Quantity": 30,
    "Unit_Price": 3500,
    "Total": 105000,
    "Contract_ID": "CT-2026-002"
  }
]

Push this JSON to your CRM or backend API via an HTTP POST request. If your system expects nested structures, switch to “Nested Mode” and set the delimiter to . — the tool generates multi-level JSON automatically.

Available platforms: Web app, Excel Add-in (Office 2013+/Office 365), WPS Add-in, REST API, MCP service, and local desktop application. No matter your environment, there’s an entry point for you.

Step 2: JSON-to-Excel — Bring API Data Back into a Spreadsheet

After your backend processes the data, you might need to bring results back into Excel for business colleagues to review or hand off to the next step.

JSON-to-Excel supports three input methods:

  1. Paste — Paste JSON text directly
  2. Upload — Upload .json or .jsonl files
  3. URL Load — Enter an API endpoint URL and let the tool fetch data automatically

Customization options include:

  • Max nesting depth: 1-20 levels or unlimited; deeper levels auto-convert to strings
  • Empty value handling: Empty string, null, or exclude
  • Boolean format: true/false, “true”/“false”, or 1/0

The output Excel file can be handed to a colleague or fed directly into Sheet-to-Doc.

Step 3: Sheet-to-Doc — Batch-Generate Word Contracts from Excel

Now your Excel data needs to become formal contracts. This is exactly what Sheet-to-Doc excels at.

  1. Prepare a Word contract template with {Client} {Product} {Total} as placeholders
  2. Open Sheet-to-Doc and upload your template
  3. Paste your Excel data or upload the file
  4. Set filename rule: Contract_{Client}_{Contract_ID}.docx
  5. Click “Generate”

Within seconds, you get a ZIP file with Word contracts named by client. 1000 contracts? Same timeline — just a few minutes.

Pro Tip: Loop Placeholders for Multi-Product Contracts

If a single contract has multiple product line items, Sheet-to-Doc’s Loop Placeholders handle it elegantly:

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Contract: {Contract_ID}
Client: {Client}

Line Items:
{#products}
  - {Product_Name} × {Quantity} = {Subtotal}
{/products}

Total: {Total}

Combined with nested-mode JSON from Excel-to-JSON, a single data row generates a contract with multiple itemized rows.

The Full Pipeline: Before vs. After

Task Manual Process Tool Pipeline
Excel → JSON Manually format JSON One-click, seconds
JSON → API Copy-paste into API docs HTTP POST, automated
API → Excel Manually reorganize results JSON-to-Excel, instant
Excel → Word Copy-paste row by row Batch generate, thousands in minutes
Total (1000 records) ~8 hours ~10 minutes

Data Security Throughout the Pipeline

All three tools support local processing — data never leaves your device:

  • Excel-to-JSON: Local desktop version runs fully offline
  • JSON-to-Excel: Web version processes in-browser; local version works without internet
  • Sheet-to-Doc: Browser-side processing; desktop version adds offline + document encryption

For sensitive data like contract amounts and client details, the local desktop versions are the safest choice.

Final Thoughts

Excel, JSON, and Word — three data formats that most businesses handle every single day. Instead of having colleagues manually shuffle between them, string them into an automated pipeline.

Excel-to-JSON gets data flowing. JSON-to-Excel brings it back organized. Sheet-to-Doc turns it into formal documents. Three tools, one pipeline, 1000 contracts, 10 minutes.

Start now: