OTS to XLS Converter

Batch convert ots files to xls format online for free

Choose files or drag & drop them here.
Only you have access to your files.
All files will be deleted after one hour.

How to convert OTS files to XLS online?

Step-by-step guide to convert ots to xls using AnyConv. It works on PC (Windows, Mac, Linux) and mobile devices (iPhone, Android).

Upload OTS-file

Drag and drop your OTS file into the upload area. The maximum file size is 100 MB.


Click "Convert" to change ots to xls. The conversion usually takes a few seconds.

Download your XLS

Now you can download the XLS file. The download link only works on your device.


  • ❓ How can I convert files from OTS to XLS?
    First you need to add file for conversion: drag and drop your OTS file or click the "Choose File" button. Then click the "Convert" button. When OTS to XLS conversion is completed, you can download your XLS file.
  • ⏱️ How long does it take to convert OTS to XLS?
    Document conversion is pretty fast. You can change OTS to XLS in a few seconds.
  • 🛡️ Is it safe to convert OTS to XLS on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including OTS to XLS) is absolutely safe.
  • 💻 Can I convert OTS to XLS on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our OTS to XLS converter works online and does not require software installation.

Information about OTS and XLS file formats

🔸 File format OTS XLS
🔸 Full name OpenDocument Spreadsheet Template XLS - Microsoft Excel Binary File Format
🔸 File extension .ots .xls
🔸 MIME type application/vnd.oasis.opendocument.spreadsheet-template application/vnd.ms-excel
🔸 Developed by OASIS Microsoft
🔸 Type of format Spreadsheet
🔸 Description The extension .ots is used for a spreadsheet document used as a template. Microsoft Excel, up until 2007 version used a proprietary binary file format called Excel Binary File Format (.XLS) as its primary format. Excel 2007 uses Office Open XML as its primary file format, an XML-based format that followed after a previous XML-based format called "XML Spreadsheet".
🔸 Technical details OpenOffice.org has created documentation of the Excel format. Since then, Microsoft has made the Excel binary format specification available to download freely.
🔸 File conversion OTS conversion XLS conversion
🔸 Associated programs Apache OpenOffice, LibreOffice Microsoft Office, LibreOffice, Kingsoft Office, Google Docs.
🔸 Wiki https://en.wikipedia.org/wiki/OpenDocument https://en.wikipedia.org/wiki/Microsoft_Excel#File_formats