Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.OTS
File Type
OpenDocument Spreadsheet Template
Category
Data
Best first step
Use compatible software
Quick Summary
A practical overview of the .ots file format
An OTS file is a spreadsheet template created using the OpenDocument standard, which is an open, XML-based file format for office applications. This specific extension is used for templates in spreadsheet programs like LibreOffice Calc and Apache OpenOffice Calc. Unlike standard spreadsheet files t…
File extension
.OTS
File type
OpenDocument Spreadsheet Template
Category
Data
Recommended action
Open with a trusted compatible app
How to open a .ots file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .ots.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .ots file?
File extension details and usage information
An OTS file is a spreadsheet template created using the OpenDocument standard, which is an open, XML-based file format for office applications. This specific extension is used for templates in spreadsheet programs like LibreOffice Calc and Apache OpenOffice Calc. Unlike standard spreadsheet files that store data for immediate use, an OTS file is designed to store boilerplate information, including specific cell formatting, styles, mathematical formulas, and layout configurations. When a user opens an OTS file, the spreadsheet software generates a new, unsaved document based on the template's parameters, preventing the original template from being accidentally overwritten. This makes it an essential tool for businesses and individuals who need to maintain consistent reporting structures or financial models. As part of the OpenDocument Schema maintained by OASIS, the OTS format ensures high interoperability across different operating systems and software suites, providing a reliable alternative to proprietary template formats like Microsoft Excel's XLTX.
Software Compatibility
Programs that may open or work with .ots files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .ots files be converted?
Options for saving or exporting this file to another format
In many cases, a .ots file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .ots file.
Why can't I open a .ots file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .ots format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .ots files
To open a .ots file, use software that supports this file format.
- LibreOffice Calc
- Apache OpenOffice Calc
- Microsoft Excel
- PlanMaker
- NeoOffice
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .ots file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.