How to convert XLSX to JSON
1. Upload XLSX
Select or drag and drop your XLSX file into the converter.
2. Choose JSON
Select JSON as your output format. You can process multiple files at once.
3. Download
Click convert and download your new JSON file instantly.
Format Details
XLSX
XLSX is the default spreadsheet format for Microsoft Excel since Office 2007, built on the Open XML standard and standardized by ISO. It stores worksheets, formulas, charts, pivot tables, and formatting in a compressed ZIP archive of XML files, making it more compact and corruption-resistant than the older XLS format. XLSX is supported by Google Sheets, LibreOffice Calc, Apple Numbers, and virtually every modern data tool.
JSON
JSON (JavaScript Object Notation) is a lightweight, human-readable data interchange format derived from JavaScript object literal syntax. It natively supports objects, arrays, strings, numbers, booleans, and null, allowing it to represent arbitrarily nested data structures. JSON has become the universal standard for REST API responses, configuration files, and data interchange on the web, with native parsing support in virtually every programming language.
Frequently Asked Questions
How do I convert XLSX to JSON?
Upload your XLSX file on Convertek, select JSON as the output format, then click Convert. Your JSON file will be ready to download instantly.
Is the XLSX to JSON converter free?
Yes. Converting XLSX to JSON on Convertek is completely free with no watermarks. Fair upload limits apply (typically 30 MB per file).
Is my file kept after conversion?
No. Files are processed temporarily and not stored permanently. Converted downloads are available only in your browser session.
What is the difference between XLSX and JSON?
XLSX and JSON are different file formats with distinct use cases. Converting between them lets you use your file in software or workflows that require the JSON format.