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Convert XLS to OTS

You have the option to convert your xls file to ots, as well as a variety of other formats, using our free online converter.

Converting your xls file to ots is easy with these steps.

Converting your ots file to xls is easy with these steps.

Icon of «Upload xls-file»
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.
Icon of «Select «to ots»»
Step 2

Select «to ots»

Choose ots or any of the other 200+ supported formats you'd like to convert to.
Icon of «Download your ots file»
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.

Converting 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.
You don't need to worry about security.
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.
Everything is stored in the cloud.
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🔵 .xls The .xls format is the default file format for spreadsheets created in Microsoft Excel, particularly in versions before Excel 007. This binary file format can store data in cells organized in rows and columns, and it supports formulas, charts, graphs, and various formatting features to manipulate and visualize dataThe .xls format was commonly used in business, finance, and any field requiring data analysis and presentation but has since been largely replaced by the more advanced .xlsx format.
Technical details🔵 The `.xls` format, primarily for Microsoft Excel versions before 2007, stores spreadsheet elements like worksheets, formulas, and macros. As a proprietary binary format by Microsoft, its undocumented internal structure made third-party software compatibility challenging. This format includes binary records encapsulating data, formatting, and embedded objects, supporting multiple worksheets, various functions, and inter-sheet referencing. `.xls` files may contain Visual Basic for Applications (VBA) macros, enabling automation and complex calculations. It's supported not just in Excel but also in applications like OpenOffice Calc, with options to convert between `.xls` and other formats like `.xlsx`. Despite security concerns with macros, `.xls` is still used, mainly for its compatibility with older Excel versions and legacy systems, although the newer `.xlsx` format, introduced in Office 2007 with XML and ZIP technologies, offers improved efficiency and security.
Developer🔵 Microsoft
MIME type
🔵 application/vnd.ms-excel

ots

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 contains a pre-designed spreadsheet template that can be used as a starting point for creating new spreadsheets. It typically includes pre-formatted cells, charts, and other elements that can be customized by the user. The format is designed to be highly portable and interoperable, allowing users to share templates between different applications and operating systems. The OTS format is based on the XML standard, which makes it highly flexible and easy to work with. It can be opened and edited using any text editor, or using 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

FAQ

❓ How do I change xls to ots?
To get started, either pick a file you want to convert from xls and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.
⏳ What is the estimated time it will take to convert xls to ots?
Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing xls to ots.
🛡️ Can I trust OnlineConvertFree to convert xls to ots securely?
Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including xls to ots, are 100% safe on OnlineConvertFree.
📱 Is it possible to convert xls to ots without having to install any software?
Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including xls to ots, on your computer or mobile device, completely online.