XLS Converter
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 1GB
How It Works
How to Convert XLS
Click inside the file drop area to upload your XLS file or drag & drop it.
Locate your XLS file on your device—typically used for various purposes. Ensure the file is under 50MB to avoid upload issues. If the upload fails, check your internet connection or try compressing the file first.
Choose the format you want to convert your XLS file to and click 'Convert'.
Choose your desired format based on your needs—different formats suit different purposes, like JPEG for smaller file sizes. The conversion process typically takes a few seconds, depending on file size and server load.
Download your converted file instantly after conversion.
Once the conversion is complete, click the download link to save your converted file. You can then open it in software like a compatible viewer. If the file doesn’t download, ensure your browser allows pop-ups from RunConvert.
You can also send a link to the converted file via email. (Optional)
Enter an email address to receive a secure link to your converted file, which is useful for sharing with clients or accessing later. Links expire after 24 hours for security, and RunConvert ensures your data is protected during transmission.
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 asked by our users on RunConvert.com.
Frequently Asked Questions
Q: Is it safe to upload XLS files to RunConvert.com?
A: Totally safe. RunConvert.com encrypts your files, like a digital safe for your spreadsheets. Your data is protected.
Q: How fast is XLS conversion on RunConvert.com?
A: Quick as a snap—usually just seconds! RunConvert.com processes XLS files fast, so you’re ready to go.
Q: Does RunConvert.com support older XLS versions?
A: You bet! RunConvert.com handles most XLS versions, even older ones. It’s like playing a classic song on a modern stereo—works perfectly.
Q: Why does my converted XLS look different?
A: Some older elements might not translate perfectly. It’s like copying a painting with modern tools. RunConvert.com does its best, but simplifying helps.
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: Why is my converted CSV opening weird in Excel?
A: Excel can get picky about delimiters and encoding. Try opening it via 'Data > From Text/CSV' for better control.
Q: Can I convert spreadsheets with multiple tabs?
A: Yes, but not all formats support multiple sheets. XLSX and ODS do, but CSV flattens everything into one sheet. If tabs matter, avoid CSV.
Q: Do formulas still calculate after converting XLSX to ODS?
A: In most cases, yes. Excel and LibreOffice play nicely together—but complex macros or newer functions might act up a bit.
Q: Will colors and fonts transfer in my spreadsheet conversion?
A: That depends on the format. Excel to Excel? You’re good. But converting to CSV? Say goodbye to colors, fonts, and anything fancy—it’s just plain text there.
Q: Why would I need to convert a spreadsheet to PDF?
A: Sometimes, you want to share your data without others editing it. PDFs lock in the look and feel of your sheet, making it great for reports or presentations.
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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As a graphic designer, I need reliable conversion tools. This site delivers professional quality every time. The image conversions maintain resolution and color accuracy.
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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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