Convert XLSX to XLSM Files Online for Free.
Free online tool to convert xlsx to xlsm 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 XLSX to XLSM
Click inside the file drop area to upload your XLSX file or drag & drop it.
Select XLSM as the output format and click the 'Convert' button.
Download the converted XLSM file instantly after conversion.
You can also send a link to the converted file via email. (Optional)
Convert Your XLSX files to other formats
RunConvert.com can convert your XLSX files to these other formats:
Convert Your XLSX files to other formats
Convert Files to XLSX Format
RunConvert.com supports these converters to XLSX format:
Convert Files to XLSX Format
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Frequently Asked Questions
Here are some common questions and answers about xlsx file conversions ask by our users on RunConvert.com.
Frequently Asked Questions
Q: Does RunConvert support OpenDocument spreadsheets?
A: You bet! We handle ODS files like a champ. Whether you’re coming from LibreOffice or heading there, we’ve got you covered.
Q: Can I convert a spreadsheet to be editable in Notepad?
A: Sure—just convert it to CSV or TSV. These plain text formats open cleanly in Notepad.
Q: What’s a TSV file, and how’s it different from CSV?
A: TSV stands for Tab-Separated Values, while CSV uses commas. They’re pretty similar—just different flavors of the same idea: plain text tables.
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: Is it safe to convert spreadsheets online?
A: Yep, as long as you're using a trusted service like RunConvert. We don’t keep your files after conversion, and everything’s encrypted. Your secrets are safe with us!
Q: Can I preview how the PDF will look before converting?
A: We’re building a live preview feature! For now, you’ll need to download and check—conversions are quick, so it’s easy to retry.
Q: Does RunConvert have file size limits?
A: We allow generous file sizes, but there’s a cap (around 100MB for now). Most spreadsheets fall well under that, though.
Q: Does RunConvert support TSV (tab-separated values)?
A: Yes! We support TSV both as input and output—it’s great for clean, plain-text spreadsheets.
Q: Can I edit my spreadsheet after converting it to PDF?
A: Not really. PDFs aren’t built for editing like spreadsheets are. You can annotate or highlight, but serious edits? You’ll need to go back to the spreadsheet.
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.
What is XLSX (Excel Spreadsheet)?
XLSX (Excel Spreadsheet) is a file format used by Microsoft Excel to store spreadsheets. It is a more modern and efficient version of the older XLS format and is based on XML (Extensible Markup Language).
XLSX files can store multiple sheets, data tables, charts, graphs, and more complex data structures. This format is widely used for organizing, analyzing, and visualizing data.
How to open XLSX?
XLSX files can be opened using spreadsheet programs like Microsoft Excel, Google Sheets, LibreOffice Calc, and Apple Numbers. These applications fully support the features of XLSX files, such as multiple sheets, formulas, and charts.
To open XLSX files in Excel or Google Sheets, simply double-click the file or import it directly into the application.
XLSX is Developed by: Microsoft
XLSX was Released on: 2007
Useful Links for XLSX:
How to convert XLSX?
You can convert XLSX files to other formats, such as CSV, PDF, or JSON, using online file converters. Upload the XLSX file and choose the desired output format.
Many spreadsheet applications like Excel also allow saving XLSX files in other formats, enabling cross-platform compatibility.
What is XLSM (Excel Macro-Enabled Spreadsheet)?
XLSM (Excel Macro-Enabled Spreadsheet) is a Microsoft Excel file format that allows users to store spreadsheets with embedded macros. Macros are small programs or scripts used to automate repetitive tasks within Excel.
XLSM files are commonly used by advanced users who want to extend Excel’s functionality through custom code written in Visual Basic for Applications (VBA). These files are useful for automating complex tasks or workflows.
How to open XLSM?
XLSM files can be opened using Microsoft Excel. Simply double-click the file, and it will open in Excel. When opening an XLSM file, Excel will prompt you to enable or disable macros, depending on your security settings.
If you do not have Excel, you can also open XLSM files in LibreOffice Calc, but macros will not be supported.
XLSM is Developed by: Microsoft
XLSM was Released on: 2007
Useful Links for XLSM:
How to convert XLSM?
You can convert XLSM files to other formats, such as XLSX, CSV, or PDF, using online file converters or Microsoft Excel itself. To convert, open the XLSM file in Excel, then use the 'Save As' option to select a different format.
When converting to formats like CSV, keep in mind that macros will be lost since they are not supported in those formats.
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