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XLSX to OTT converter

Convert XLSX to OTT online from any device with a free converter.

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We have already processed 4,137,252 files with total size of 6,335,236 Mbytes

About Conversion app

Convert your XLSX files online. You can convert your XLSX documents from any platform (Windows, Linux, macOS). No registration needed. Just drag and drop your XLSX file on upload form, choose the desired output format and click convert button. Once conversion completed you can download your OTT 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 OTT file. Expand the ConvertOptions and fill the fields for watermarking.

You can convert your XLSX documents from anywhere, from any machine or even from a mobile device. The XLSX converter is always available online and is completely free.

  • Convert WORD to PDF, EXCEL to PDF, PDF to WORD, POWERPOINT to IMAGE, VSDX to PDF, HTML to DOCX,EPUB to PDF, RTF to DOCX, XPS to PDF, ODT to DOCX, ODP to PPTX and many more document formats
  • Simple way to instant convert XLSX to OTT
  • Convert XLSX from anywhere - it works on all platforms including Windows, MacOS, Android and iOS
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APIs available

Convert popular document and image file formats in your app. The GroupDocs.Conversion APIs are available for .NET, Java, and many other platforms and languages.

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How it works

How to convert XLSX to OTT

Step 1
Click inside the file drop area to upload XLSX file or drag & drop XLSX file.
Step 2
Click on Convert button. Your XLSX files will be uploaded and converted to OTT result format.
Step 3
Download link of result files will be available instantly after conversion.
Step 4
You can also send a link to the OTT file to your email address.
FAQ

Questions & Answers

XLSX

Microsoft Excel Open XML Spreadsheet

XLSX is well-known format for Microsoft Excel documents that was introduced by Microsoft with the release of Microsoft Office 2007. Based on structure organized according to the Open Packaging Conventions as outlined in Part 2 of the OOXML standard ECMA-376, the new format is a zip package that contains a number of XML files. The underlying structure and files can be examined by simply unzipping the .xlsx file.

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OTT

Open Document Template

Files with OTT extension represent template documents generated by applications in compliance with the OASIS' OpenDocument standard format. These are created with word processor applications such as free OpenOffice Writer and can hold settings that can be used to generate new documents from these template files. These settings include page margins, borders, headers, footers, and other page settings. Such templates are used in official documents such as company letterheads and standardized forms.

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Other Supported Conversions

You can also convert XLSX into many other file formats. Please see the complete list below.

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