XLS Converter
Free online XLS converter. Convert xls files to and from other formats in seconds — no software install, no watermark, no sign-up required.
Pick the exact conversion you need below
Every XLS conversion has its own dedicated, free tool — scroll down and choose one.
About XLS Converter
XLS (Microsoft Excel 97-2003) is the legacy Microsoft Excel spreadsheet format. This free xls converter lets you change XLS files into other formats — and convert other files into XLS — quickly, privately and without installing anything.
How to use XLS Converter
Upload your file by dragging it into the box above or clicking to browse — files up to 100MB are supported.
The XLS conversion starts automatically and runs securely in your browser, so your files never leave your device.
Preview the result, then click Download to save the converted file.
Convert XLS to…
What is a XLS file?
XLS stands for Microsoft Excel 97-2003. It is the legacy Microsoft Excel spreadsheet format. Knowing when to keep a file as XLS and when to convert it makes a real difference: every format has its own balance of quality, file size and compatibility.
If an app or website won't accept your xls file, converting it is the fastest fix — and this free xls converter does it in seconds, with no software to install and no watermark on the result.
Convert XLS files free, fast and private
Pick any conversion below — every one is free, works on phones and computers, and never uploads your file to a server when the conversion can run in your browser. That means no queues, no size games and no privacy worries.
Frequently Asked Questions
What is a XLS file?+
XLS stands for Microsoft Excel 97-2003. It is the legacy Microsoft Excel spreadsheet format.
How do I convert a XLS file?+
Upload your XLS file, choose the format you want, and download the converted result — or pick a dedicated xls conversion below.
Is this xls converter free?+
Yes, completely free with no limits, watermarks or registration.
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