How do I open a .XLTX file on Windows or Mac?

You can open .XLTX files using Microsoft Excel, LibreOffice Calc, Google Sheets. If you do not have native software installed, you can use OpenAnyFile's free File Identifier or convert .XLTX to a standard format in your browser.

Is a .XLTX file safe to open?

This format carries a safety rating of Low Risk. Safe template file for standard office spreadsheet forms

Can I convert a .XLTX file to other formats?

Yes! .XLTX can be converted to formats such as .XLSX directly in your web browser.

What should I do if a .XLTX file is corrupted or won't open?

If your .XLTX file displays an invalid header or signature error, check its magic bytes hex header (Varies) using OpenAnyFile's Magic Byte Detector or follow our step-by-step file repair guide.

How do I open .XLTX files?

You can open .XLTX files using Microsoft Excel, LibreOffice Calc, Google Sheets.

Documents • MIME: application/vnd.openxmlformats-officedocument.spreadsheetml.template

.XLTX – XLTX File Format

Q: What is a .XLTX file?

A .XLTX file is a XLTX File Format associated with Documents. XLTX is an XML template file created by Microsoft Excel 2007+ for distributing reusable, macro-free financial and data entry forms.

XLTX is an XML template file created by Microsoft Excel 2007+ for distributing reusable, macro-free financial and data entry forms.

Primary Category Documents

MIME Type application/vnd.openxmlformats-officedocument.spreadsheetml.template

Magic Bytes Signature Varies

Security Risk Rating Low Risk

Recommended Software to Open .XLTX

Microsoft Excel

windows, mac, linux • Free

LibreOffice Calc

windows, mac, linux • Free

Google Sheets

windows, mac, linux • Free