Convert XLS to OTS

No Signup required, Convert and Download High Qulity OTS and use anywhere

Powered by Commercial Grade High Quality Excel Algorithms from ExcelMaster.ai. You will notice the higher output quality difference compared to competitors!

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XLS to OTS Overview

Our free tool allows you to convert Excel files into a variety of formats, offering maximum flexibility for your document conversion needs. It's fully online and compatible with multiple platforms, including Mac OS, Linux, Android, iOS, and more.

How to Convert XLS Files to OTS

  • Upload Your Files: Select the Excel files you want to convert and upload them to the website.

  • Start Conversion: Hit the "Convert" button to initiate the process.

  • Download: You can immediately download your converted files

  • File Deletion Notice: Please note that files are automatically deleted from our servers after 24 hours, and download links become inactive after this time.

Key Advantages - XLS to OTS

No Signup Required

Enjoy hassle-free usage with no sign-up needed. Works smoothly across platforms, including Windows, Mac, iOS, and Android.

Batch File Conversion

Easily convert multiple Excel spreadsheets in one go—upload up to 10 files at a time.

Data Privacy and Security

Your data is secured using advanced encryption methods and is never used for any other purposes. All files are permanently deleted after 24 hours.

Top-Tier, Commercial-Grade Quality

Our conversion algorithms are built with commercial-grade technology, ensuring flawless results even with complex Excel elements like charts and formatting. Although the conversion process is simple for you, our backend is carefully designed to deliver results comparable to leading commercial solutions. Each detail is carefully managed to ensure a premium quality experience.

What is OTS?

OTS (OpenDocument Spreadsheet) is a file format used for spreadsheets, primarily associated with OpenOffice and LibreOffice applications. It allows users to create, edit, and share spreadsheet documents in an open-source format, enabling compatibility across various software platforms. OTS is particularly useful for users seeking alternatives to proprietary formats like Excel, providing a free and flexible option for data handling.

Loss of Formatting

When converting Excel files to OTS, the intricate formatting such as cell styles, fonts, and colors may not transfer accurately, leading to a loss of visual appeal and readability.

Functionality Limitations

Certain Excel functions and formulas may not be supported in the OTS format, resulting in errors or missing calculations that can affect the spreadsheet's functionality.

Compatibility Problems

Not all programs that support OTS can handle advanced features found in Excel, which can lead to compatibility issues when sharing or collaborating on the documents.

Data Integrity Issues

During the conversion process, some data types (such as dates or special characters) may not be interpreted correctly, risking data integrity and potentially corrupting the spreadsheet.

What are the differences between XLSX and XLS?

File Format

XLSX is the modern file format used by Microsoft Excel, introduced with Excel 2007, and is based on the Open XML standard. In contrast, XLS is the older binary file format used by earlier versions of Excel up to 2003.

File Size

XLSX files are generally smaller in size compared to XLS files because they use Zipping compression, making it more efficient for storage and sharing.

Data Capacity

XLSX supports a significantly larger amount of data, allowing for up to 1,048,576 rows and 16,384 columns per worksheet, while XLS is limited to 65,536 rows and 256 columns.

Features and Functions

XLSX files support newer features and functions available in Excel 2007 and later versions, such as improved charting tools, Sparklines, and enhanced formulas. XLS files do not have access to these advanced features.