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XLS to XLSM converter

Convert XLS to XLSM online from any device with a free converter.

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About Spreadsheet converter

Convert XLS to XLSM files online with our free spreadsheet converter. Whether you're on Windows 10, Mac, Android or iPhone, converting XLS files is quick and easy.

Spreadsheet file formats like XLSX, XLS, ODS, and CSV are commonly used for organizing and analyzing data. XLSX and XLS are associated with Microsoft Excel and support advanced features, CSV is a simpler format, storing data as plain text. Popular applications for working with tables include Microsoft Excel, Google Sheets, and Apple Numbers.

To change XLS to XLSM just drop your file onto the upload form, pick the output format and hit the Convert button. After the conversion is finished, download your XLSM file instantly. No email needed.

Check our video
XLS

Microsoft Excel Binary File Format

The XLS file format is a binary file format used by Microsoft Excel to store spreadsheet data, including text, numbers, formulas, and formatting. It is supported by various spreadsheet applications like Microsoft Excel, LibreOffice Calc, and Apache OpenOffice, as well as online tools like Google Sheets. The format organizes data into worksheets with rows and columns, supports advanced features like macros, charts, and conditional formatting, and is part of the broader Excel ecosystem, though it has been largely replaced by the XML-based XLSX format.

XLSM

Microsoft Excel Macro-Enabled Spreadsheet

XLSM is a file format used for Excel spreadsheets that support macros, enabling automation and advanced functionality within the document. It is primarily used with Microsoft Excel but can also be opened by other spreadsheet applications like LibreOffice Calc and Google Sheets with limited macro support. The format is based on the Open XML standard, storing data, formulas, and VBA (Visual Basic for Applications) macros in a compressed ZIP container, allowing for efficient storage and advanced features like conditional formatting, pivot tables, and embedded macros.

Add the conversion API to your app

  • Convert over 200 file formats — including PDF, Word, Excel, HTML, images, and many more
  • Load files from disk, URLs, FTP servers, or cloud storage (such as Amazon S3 or Azure)
  • Customize output settings — rotate and reorder pages, add comments, or apply watermarks
How it works

How to convert XLS to XLSM

Step 1
Click inside the file drop area to upload XLS file or drag & drop XLS file.
Step 2
Click on Convert button. Your XLS files will be uploaded and converted to XLSM result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the XLSM file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

You can also convert XLS into many other file formats. Please see the complete list below.

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