Convert OTS to XLS Online — Free & Fast | AnyConv

OTS to XLS Converter

Quickly convert multiple ots files to xls — free & online.

Drag & drop your files here or click to upload

How to convert OTS to XLS online

Follow these simple steps to convert ots files to xls using AnyConv. It works on all devices — Windows, Mac, Linux, iPhone, Android.

Upload your OTS file

Drag & drop your file into the upload area. You can also click to select it manually. Max file size: 100 MB.

Start converting

Hit the “Convert” button to turn your OTS into XLS. The process usually takes just a few seconds.

Download your XLS

Once ready, download your converted file instantly. The download link is private and only works on your device.

What is a OTS file?

OTS is a template format used by LibreOffice Calc and Apache OpenOffice Calc. It is part of the OpenDocument standard and stores reusable spreadsheet layouts and styles.

OTS templates help users create consistent spreadsheets without having to rebuild formatting or formulas each time. They can be used as a base for generating new ODS files.

How to open OTS files

OTS files are used with LibreOffice Calc and Apache OpenOffice Calc. They serve as templates for creating new spreadsheets with consistent formatting and structure.

Convert OTS to ODS or XLSX using AnyConv or save the file in a different format from within LibreOffice.

Key facts about OTS

  • Full name: OpenDocument Spreadsheet Template
  • Extension: .ots
  • MIME type: application/vnd.oasis.opendocument.spreadsheet-template
  • Developed by: OASIS
  • Initial release: 2005

Useful links and resources

What is a XLS file?

XLS is the proprietary spreadsheet format used by Microsoft Excel prior to the introduction of XLSX in 2007. It uses a binary file structure and supports formulas, charts, macros, and formatting.

XLS files remain widely compatible and are still used in many organizations. However, XLSX offers better performance and security.

How to open XLS files

XLS files can be opened using Microsoft Excel, Google Sheets, LibreOffice Calc, and other spreadsheet applications. They support charts, formulas, and formatting.

To ensure compatibility and security, convert XLS to XLSX or ODS using AnyConv or within Excel itself.

Key facts about XLS

  • Full name: Microsoft Excel Binary File Format
  • Extension: .xls
  • MIME type: application/vnd.ms-excel
  • Developed by: Microsoft
  • Initial release: 1987

Useful links and resources

❓ Frequently Asked Questions

Answers to common questions about converting OTS to XLS
  • Do I need to register to convert OTS files?
    Not at all! You can convert OTS to XLS without signing up or installing anything.
  • Is it safe to convert OTS to XLS on AnyConv?
    Absolutely. All OTS and XLS files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
  • Will the quality change after converting OTS to XLS?
    We do our best to preserve the original quality during OTS to XLS conversion. The result is accurate and clean.
  • How long does it take to convert OTS to XLS?
    Most conversions from OTS to XLS take just a few seconds — even for larger files.
  • Can I upload more than one OTS file?
    Yes, batch conversion is supported. You can convert multiple OTS files to XLS at once — fast and easy.
  • What browsers support OTS to XLS conversion?
    All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting OTS to XLS on any platform.