Convert XLSX to XLTM Online — Free
Fast, free XLSX to XLTM converter. No registration required.
2M+ Files Converted
Trusted by thousands of users
Secure Transfer
HTTPS encrypted uploads
Privacy First
Files auto-deleted after processing
No Registration
Start converting instantly
Works Everywhere
Any browser, any device
How to Convert
Upload your .xlsx file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .xltm file when it's ready.
What is XLSX?
XLSX is the modern Microsoft Excel format. It's the standard for spreadsheets containing data, formulas, charts, and pivot tables.
Format Details
- Full Name
- Microsoft Excel Spreadsheet
- Extension
- .xlsx
Key Features
- Spreadsheet
- Formulas
- Charts
- Data analysis
What is XLTM?
XLTM is a Microsoft Excel macro-enabled template file in the modern Office Open XML format. It contains VBA macros along with spreadsheet formatting and formulas for automated workbook generation.
Format Details
- Full Name
- Excel Macro-Enabled Template
- Extension
- .xltm
Key Features
- Macro-enabled
- OOXML format
- VBA macros
- Excel template
XLSX vs XLTM
| Feature | XLSX | XLTM |
|---|---|---|
| Full Name | Microsoft Excel Spreadsheet | Excel Macro-Enabled Template |
| Extension | .xlsx | .xltm |
| Best For | Spreadsheet | Macro-enabled |