OTS File Extension

Programs that support OTS files

• Windows ⁶
• Mac OS ⁵
• Linux ⁴

Windows

• OpenOffice Calc
• LibreOffice Calc
• StarOffice
• IBM Lotus Symphony
• OpenOffice
• LibreOffice

Mac OS

• OpenOffice Calc
• LibreOffice Calc
• NeoOffice
• OpenOffice
• LibreOffice

Linux

• OpenOffice Calc
• LibreOffice Calc
• OpenOffice
• LibreOffice

How to open a OTS file?

If you’re having difficulty opening a OTS file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.

The most popular programs for working with OTS files are OpenOffice Calc, LibreOffice Calc and StarOffice. To install the current version of StarOffice, go directly to the official Oracle website. The universal package for all operating systems is available there.

Following installation, OTS files should be automatically opened with StarOffice.

Set StarOffice as the default OTS program

Changing the default program in Windows

1. Right-click your OTS file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
2. In the pop-up window, select the StarOffice application;
3. Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening OTS files.

Change Default Program on Mac

1. Right click or Control + left click on the desired OTS file;
2. Select "Open in application" and click "Other";
3. Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
4. Within this menu select "All Programs" and navigate to StarOffice. Check the box next to "Always open in app" to make sure it’s the default option.

Convert to and from OTS

For difficult OTS files, try converting them to formats like PDF, CSV, XLS, XLSX, ODS or similar formats to improve usability.

Please note that after converting a OTS file, some functionality may differ from the original. However, in many cases, it can be converted back to its original format.

Using offline applications such as IBM Lotus Symphony, you can convert OTS files to various formats without losing data quality.

Convert OTS to other file formats

• OTS to ODS
• OTS to CSV
• OTS to PDF
• OTS to XLSX
• OTS to XLS

Converting Files to OTS Format

• XLSX to OTS

Solve problems with OTS files

When issues arise with OTS files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.

How to edit a OTS file?

To edit OTS files, you need to install specialized software that allows you not only to open but also to modify spreadsheet files. Online OTS editors usually provide fewer features than software created specifically for OpenDocument Spreadsheet Template.

List of Top OTS editors 2026

Taking into account the provided details, we have prepared a list of OTS editors that match your needs.