Powered by groupdocs.com and groupdocs.cloud.
By uploading your files or using our service you agree with our Terms of Service and Privacy Policy.
Convert your XLS files online. You can convert your XLS documents from any platform (Windows, Linux, macOS). No registration needed. Just drag and drop your XLS file on upload form, choose the desired output format and click convert button. Once conversion completed you can download your XLTM file.
You even can perform more advanced conversions. For example you can convert password protected documents. Just expand LoadOptions and enter the password of your file. Or you can add a watermark to the converted XLTM file. Expand the ConvertOptions and fill the fields for watermarking.
You can convert your XLS documents from anywhere, from any machine or even from a mobile device. The XLS converter is always available online and is completely free.
Files with XLS extension represent Excel Binary File Format. Such files can be created by Microsoft Excel as well as other similar spreadsheet programs such as OpenOffice Calc or Apple Numbers. File saved by Excel are known as Workbook where each workbook can have one or more worksheets. Data is stored and displayed to users in table format in worksheet and can span numeric values, text data, formulas, external data connections, images and charts.
Read moreThe XLTM file extension represents files that are generated by Microsoft Excel as Macro-enabled template files. XLTM files are similar to XLTX in structure other than that the later doesn't support creating template files with macros. Such template files are used to generate and set the layout, formatting, and other settings along with the macros to facilitate creating similar XLSX files then.
Read moreYou can also convert XLS into many other file formats. Please see the complete list below.