How does the tool determine if a field is required?

It uses a 'Required Threshold' setting; if a column contains data in more than 98% of the sampled rows, it is marked as required.

Can I limit the number of enum values detected?

Yes, you can adjust the 'Enum Max Distinct' setting to control how many unique values are allowed before a field is treated as a standard string rather than an enum.

Does it support multiple sheets in one file?

The tool processes one sheet at a time. You can specify the sheet name in the configuration options.

What happens if my data has empty rows?

The tool ignores empty rows during the inference process and focuses on the populated data within your defined sample size.

Is my data uploaded to a server?

The file is processed to extract the schema structure; no sensitive data is stored permanently after the conversion process is complete.

Elysia Tools

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Format Conversion

XLSX Sheet To JSON Schema

Infer JSON Schema from worksheet headers and sample rows with types, enum candidates, and basic constraints

Details

What this tool helps you do

Infer JSON Schema from spreadsheet samples.

Uses header row as property names
Infers primitive type and nullable behavior
Detects enum candidates and numeric/string constraints
Exports schema as JSON file

Execution

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Prepared example runs

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1 examples

Infer JSON Schema from Sheet Samples

Read header and sample rows to infer field types, enum values, and required constraints

{
  "type": "file",
  "filePath": "/public/samples/json/xlsx-sheet-to-json-schema-example1.json"
}

Inputs

Set the required fields, then run the tool.

7 options

FilesUpload source files for this workflow.1

Excel FilefileRequired

Single file max size: 100 MBSupported types: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel

ContentPaste or type the main input values.2

Sheet NametextOptionalSchema TitletextOptional

SettingsAdjust formats, ranges, numbers, and modes.4

Header RownumberOptionalSample RowsnumberOptionalEnum Max DistinctnumberOptionalRequired ThresholdrangeOptional

Result

Ready for a run

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Samples

XLSX Sheet To JSON Schema

What this tool helps you do

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Prepared example runs

Inputs

Result

Examples that match this tool

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Inputs

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Key facts

Overview

When to use

How it works

Use cases

Examples

1. Generating API Schema from Sales Data

2. Validating Inventory Imports

FAQ

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