How to convert XLS to JSON
1. Upload XLS
Select or drag and drop your XLS 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
XLS
XLS is the legacy binary spreadsheet format used by Microsoft Excel from 1987 through the Office 2003 era, based on Microsoft's proprietary Binary Interchange File Format (BIFF). It stores worksheets, formulas, charts, and macros in a binary structure that requires Microsoft's format specification to parse correctly. XLS remains common in older enterprise systems and when compatibility with legacy versions of Excel is required.
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 XLS to JSON?
Upload your XLS file on Convertek, select JSON as the output format, then click Convert. Your JSON file will be ready to download instantly.
Is the XLS to JSON converter free?
Yes. Converting XLS 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 XLS and JSON?
XLS 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.