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XLSX to XLTX converter

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

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About Conversion app

Convert your XLSX files online—no registration needed. No matter your platform—Windows, Linux, or macOS—you can convert your XLSX documents rapidly. Drag and drop your file onto the upload form, pick the output format you need, and hit the convert button. After the conversion is finished, download your XLTX file instantly.

Conversion time varies based on the XLSX file's size and complexity, but most files convert within seconds. Our advanced options include converting secured documents and delivering conversion results straight to your inbox.

Easily convert your XLSX documents from any location and any device, even on mobile. This conversion app is always accessible online and free for basic use.

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XLSX

Microsoft Excel Open XML Spreadsheet

XLSX is a widely used file format for spreadsheets, developed by Microsoft as part of the Office Open XML standard, succeeding the older XLS format. It is supported by Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications, ensuring cross-platform compatibility. The format is based on XML and stored in a compressed ZIP container, enabling features like advanced formulas, charts, conditional formatting, and support for large datasets while maintaining smaller file sizes compared to its predecessor.

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.

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APIs available

Convert popular document and image file formats in your app. The GroupDocs.Conversion APIs are available for .NET, Java, and many other platforms and languages.

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How it works

How to convert XLSX to XLTX

Step 1
Click inside the file drop area to upload XLSX file or drag & drop XLSX file.
Step 2
Click on Convert button. Your XLSX files will be uploaded and converted to XLTX 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 XLTX file to your email address.
FAQ

Questions & Answers

Other Supported Conversions

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

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