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XLTX to XLSM converter

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

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We have already processed 5,837,434 files with total size of 9,546,272 Mbytes

About Spreadsheet converter

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

Microsoft Excel Open XML Template

XLTX is a file format used for Excel Open XML Spreadsheet Templates, designed to store pre-formatted spreadsheet layouts for creating consistent and reusable Excel documents. It is supported by Microsoft Excel, LibreOffice Calc, and other spreadsheet applications, enabling users to create, edit, and share templates across platforms. The format is based on XML and ZIP compression, allowing for structured data storage, advanced formatting, and customization options such as formulas, styles, and macros.

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 XLTX to XLSM

Step 1
Click inside the file drop area to upload XLTX file or drag & drop XLTX file.
Step 2
Click on Convert button. Your XLTX 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 XLTX into many other file formats. Please see the complete list below.

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