File converter / Documents / OTS

Online OTS converter

Choose file to convert to .ots
or drag and drop file

You can convert documents to OTS format with free online converter.

How to convert to ots
Step 1

Upload file

Select file, which you want to convert from your computer, Google Drive, Dropbox or drag and drop it on the page
Step 2

Select «to ots»

Select ots or any other format, which you want to convert (more 200 supported formats)
Step 3

Download your ots file

Wait till your file will be converted and click download ots -file

Online and free ots converter

Fast and easy
Just drop your ots files on the page and you can convert it to more than 250 different file formats without registration, giving an email or watermark.
Don't worry about security.
We delete uploaded ots files instantly and converted files after 24 hours. All files transfer with secured an advanced level of SSL encryption.
All in the cloud
You don't need to install any software. All ots conversions make in the cloud and don't use any resources of your computer.
File extension .ots
File category documents
Main program OpenOffice Calc
Developer Sun Microsystems
MIME type


❓ How can I convert ots?
Firstly, select a ots file you want to convert or drag and drop it. Secondly, select a format you want to convert your file to. Then click convert and wait until your file is converted
⏳ How long should I wait to convert ots?
Documents conversion usually takes a few seconds. You will convert ots very quickly.
🛡️ Is it secure to convert ots on OnlineConvertFree?
Sure! We delete your uploaded and converted files, so nobody has access to your information. All types of conversion on OnlineConvertFree (including ots) is 100% safe.
📱 Can I convert ots without software installation?
Absolutely! OnlineConvertFree doesn’t require installation. You can convert any files (including ots) online on your computer or mobile.