Convert XLS Files Online for Free.
Free online tool to convert xls files quickly and securely. No installation required – start converting your files in just a few clicks!
Drag and drop your files here or click to upload.
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Maximum file size is 10MB
How It Works
How to Convert XLS
Click inside the file drop area to upload your XLS file or drag & drop it.
Choose the format you want to convert your XLS file to and click 'Convert'.
Download your converted file instantly after conversion.
You can also send a link to the converted file via email. (Optional)
Convert Your XLS files to other formats
RunConvert.com can convert your XLS files to these other formats:
Convert Your XLS files to other formats
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Frequently Asked Questions
Here are some common questions and answers about xls file conversions ask by our users on RunConvert.com.
Frequently Asked Questions
Q: Can I convert a spreadsheet to use in a mobile app?
A: Yes! Many mobile apps work well with CSV, XLSX, or even JSON if you’re importing data programmatically.
Q: Can I preview the file before downloading the converted version?
A: On RunConvert, we’re working on adding that feature. For now, just download it—it’s super quick, and if it’s not right, you can tweak and reupload.
Q: How long does a spreadsheet conversion take?
A: Usually just a few seconds. It depends on your file size and internet speed, but it’s faster than brewing a cup of coffee.
Q: Can I upload a file from a URL for conversion?
A: Not yet, but we’re exploring this feature. For now, you’ll need to download it and upload from your device.
Q: Can I use RunConvert to convert spreadsheet files?
A: You sure can! RunConvert.com handles tons of spreadsheet conversions—Excel, CSV, ODS, TSV, and more. Just upload your file, pick your output format, and you're golden.
Q: Will text wrapping be preserved after conversion?
A: Yes, as long as the format supports it. PDF, XLSX, and ODS usually preserve wrapping. CSV won’t.
Q: Can I convert spreadsheets that contain dropdowns or validations?
A: Yes, but only to formats like XLSX or ODS. Those features don’t carry over to CSV or PDF.
Q: Can I convert password-protected Excel files?
A: You'll need to remove the password first. Conversion tools can’t peek inside locked files—privacy, remember?
Q: Can I convert a CSV to Excel without losing data?
A: Yes! Just open the CSV in Excel and save it as an .xlsx file. Boom—done. Just double-check the formatting afterward to make sure it looks right.
Q: Can I convert spreadsheets without internet access?
A: Not with RunConvert—it’s a web-based tool. But if you need offline options, software like LibreOffice or Excel can do basic conversions.
What is XLS (Excel Spreadsheet)?
XLS (Excel Spreadsheet) is a proprietary file format developed by Microsoft for storing spreadsheet data, including rows, columns, and data cells. The format supports complex data like formulas, charts, and formatting.
XLS files are widely used for business, academic, and personal tasks requiring advanced data analysis, visualization, and reporting.
How to open XLS?
XLS files can be opened using spreadsheet programs like Microsoft Excel, LibreOffice Calc, or Google Sheets. These programs display data in a tabular format, preserving the cell structures, formulas, and formatting.
To open XLS files in Excel or Google Sheets, simply double-click the file or import it into the application.
XLS is Developed by: Microsoft
XLS was Released on: 1985
Useful Links for XLS:
How to convert XLS?
You can convert XLS files to other formats, such as CSV, JSON, or PDF, using online file converters or within spreadsheet programs. Simply upload your XLS file and select the desired output format.
In Microsoft Excel or LibreOffice, you can also save your XLS files in various other formats, like CSV or PDF, for compatibility with different applications.
What Our Users Say
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Saved me hours of work
I had to convert multiple PDFs to Word for editing. This tool made it so easy and preserved all the formatting perfectly. The batch processing feature is a game changer.
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Professional quality
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Fast and reliable
I've tried many conversion tools but this one is by far the fastest and most reliable. No watermarks, no quality loss, and the interface is so intuitive.
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