Convert XLS to JSON
Converting from: XLS
Converting to: JSON
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About XLS
XLS is the older binary spreadsheet format used by Excel versions before 2007.
Still needed when working with legacy systems or older software that doesn't support XLSX.
XLS files are limited to 65,536 rows and 256 columns — a fraction of the modern XLSX capacity.
💡 The XLS binary format dates back to 1987, making it older than the World Wide Web itself.
About JSON
JSON (JavaScript Object Notation) is a lightweight, human-readable format for structuring data as key-value pairs and lists.
The default format for APIs, configuration files, and passing structured data between web applications.
JSON was specified by Douglas Crockford in the early 2000s and is now defined by RFC 8259.
💡 Despite "JavaScript" in its name, JSON is language-independent and used by virtually every modern programming language.
Frequently asked questions
How do I convert XLS to JSON?
Upload your XLS file above, and Other Streets converts it to JSON instantly in your browser — no software to install and no waiting.
Is converting XLS to JSON free?
Yes. Every conversion on Other Streets, including XLS to JSON, is completely free with no limits or hidden fees.
Can I convert multiple XLS files to JSON at once?
Yes. You can upload as many XLS files as you want and convert them all to JSON in the same batch.