Convert OTS to XLSM Online — Free
Fast, free OTS to XLSM 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 .ots 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 .xlsm file when it's ready.
What is OTS?
OTS is the OpenDocument Format spreadsheet template used by LibreOffice Calc, Apache OpenOffice, and other ODF-compatible applications. It stores cell formatting, formulas, and styles as reusable templates.
Format Details
- Full Name
- OpenDocument Spreadsheet Template
- Extension
- .ots
Key Features
- OpenDocument
- Spreadsheet template
- LibreOffice Calc
- ISO standard
What is XLSM?
XLSM is a macro-enabled Microsoft Excel format. It supports VBA macros for spreadsheet automation while using the same Open XML structure as XLSX.
Format Details
- Full Name
- Excel Macro-Enabled
- Extension
- .xlsm
Key Features
- VBA macros
- Open XML format
- Excel compatible
- Automation support
OTS vs XLSM
| Feature | OTS | XLSM |
|---|---|---|
| Full Name | OpenDocument Spreadsheet Template | Excel Macro-Enabled |
| Extension | .ots | .xlsm |
| Best For | OpenDocument | VBA macros |