Convert XLS to OTS
Choose file to convert
You have the option to convert your xls file to ots, as well as a variety of other formats, using our free online converter.
How to convert xls to ots?
Step 1
Upload xls-file
You can select xls file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Step 2
Select «to ots»
Choose ots or any of the other 200+ supported formats you'd like to convert to.
Step 3
Download your ots file
Please wait for the conversion to complete, then click on the download button to obtain your converted file in the ots format.
The security of your files is our priority
Understanding the importance of the security of our users' data, we have implemented a number of measures to ensure reliable file conversion without the risk of information leakage or privacy violations.
Data encryption
All information uploaded to our platform is SSL encrypted, ensuring privacy during transmission.
Safe storage
After the conversion is completed, the files are stored on secure servers for 24 hours and are automatically destroyed, excluding access by third parties.
Harmless scripts
Our file conversion tools are regularly tested for malicious code or vulnerabilities to eliminate the risk of a potential cyber attack.
Best tool to convert xls to ots
xls to ots Fast and easy
Simply drag and drop your xls files onto the webpage, and you'll be able to convert them to ots or over 250 different file formats, all without having to register, provide an email address, or include a watermark.
Secure xls to ots Conversion
As soon as you upload your xls files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
You don't have to go through the hassle of installing any software. We handle all xls to ots conversions in the cloud, which means that none of your computer's resources will be used in the process.
Microsoft Excel Binary File Format
| Extension | .xls |
| Category | 🔵 documents |
| Programs | 🔵 Microsoft Office 🔵 LibreOffice 🔵 Kingsoft Office 🔵 Google Docs |
| Main program | 🔵 Microsoft Office |
| Description | 🔵 The .xls format is synonymous with spreadsheets created in Microsoft Excel, especially in versions prior to 2007. This binary file format has the capability to store data in cells that are systematically arranged in rows and columns. It's also flexible enough to support formulas, charts, graphs, and a plethora of formatting features to assist with data manipulation and visualization. The .xls format was a common go-to in sectors such as business and finance, or any field that necessitated data analysis and presentation. However, the advent of the more sophisticated .xlsx format has largely overshadowed its use. |
| Technical details | 🔵 Diving into the technical details, the .xls format, the golden standard for Microsoft Excel versions prior to 2007, is capable of storing a range of spreadsheet elements, including worksheets, formulas, and macros. As a proprietary binary format birthed by Microsoft, its undocumented internal architecture has posed a significant challenge to compatibility with third-party software. The format is comprised of binary records that contain data, formatting, and embedded objects, offering the possibility of multiple worksheets, a variety of functions, and inter-sheet referencing. .xls files also have the capacity to include Visual Basic for Applications (VBA) macros, opening up avenues for automation and complex calculations. Despite the existence of alternatives like OpenOffice Calc, and options to convert between .xls and other formats such as .xlsx, the .xls format continues to hold its ground, largely due to its compatibility with older Excel versions and legacy systems. However, it's important to note that the newer .xlsx format, which made its debut in Office 2007 and harnesses XML and ZIP technologies, brings to the table improved efficiency and security features. Despite the potential security risks associated with macros, the .xls format continues to be widely used. |
| Developer | 🔵 Microsoft |
| MIME type | 🔵 application/vnd.ms-excel |
| Extension | .ots |
| Category | 🔵 documents |
| Main program | 🔵 OpenOffice Calc |
| Description | 🔵 The OTS file format is used for templates created with the Calc application in the OpenDocument format. It is an XML-based format and is part of the OpenDocument specification, which is an open standard for document file formats used by many office productivity software suites, including OpenOffice.org, LibreOffice, and others. |
| Technical details | 🔵 An OTS file is a pre-designed spreadsheet template that serves as a starting point for creating new spreadsheets. It usually includes pre-formatted cells, charts, and other elements that can be customized by the user. The format is highly portable and interoperable, allowing users to share templates across different applications and operating systems. The OTS format is based on the XML standard, making it extremely flexible and easy to work with. It can be accessed and edited using any text editor or specialized software such as LibreOffice or OpenOffice.org. The format supports a wide range of features, including multiple sheets, formatting, formulas, macros, and more. |
| Developer | 🔵 Sun Microsystems |
| MIME type | 🔵 application/vnd.oasis.opendocument.spreadsheet-template |