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This page contains information on the XLSX file extension (Microsoft Excel Open XML document), a popular document file format

File extension.xlsx
CategoryDocument File
DescriptionAs part of Microsoft's 2007 Office suite of products another open XML document type was introduced. This time in the Excel sphere, Excel is known world wide. It is a powerful tool you can use to create and format spreadsheets, graphs, do complex maths and much more. You are able to create diverse spreadsheets with multiple workbooks, formulae, and various data sources. Files can be saved in the XLSX format, which is based on the Open XML format and uses ZIP compression for smaller file sizes.
Actions Convert XLSX file
View other document file formats
Technical DetailsXLSX improves file and data management and data recovery. XLSX extends what is possible with the binary files of earlier versions. Any application that supports XML can access and work with data in the new file format. The application does not need to be a Microsoft product it can be any application. Users can also use standard transformations to extract or repurpose the data. In addition, security concerns are drastically reduced because the information is stored in XML, which is essentially plain text. Thus, the data can pass through corporate firewalls without hindrance.
Associated programs Microsoft Excel 2007
OxygenOffice Progessional (Linux)
Developed by Microsoft
MIME type  application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
Useful links More detail about the XLSX format
Convert XLSX file

Convert XLSX file

Using Zamzar it is possible to convert XLSX files to a variety of other formats:

xlsx to bmp (Windows bitmap)
xlsx to csv (Comma Separated Values)
xlsx to html (Hypertext Markup Language)
xlsx to html4 (Hypertext Markup Language)
xlsx to html5 (Hypertext Markup Language)
xlsx to jpg (JPEG compliant image)
xlsx to jpg (JPEG compliant image)
xlsx to mdb (Microsoft Access Database)
xlsx to numbers (Apple iWork Numbers Spreadsheet)
xlsx to numbers09 (Apple iWork '09 Numbers Spreadsheet)
xlsx to ods (OpenDocument spreadsheet)
xlsx to pdf (Portable Document Format)
xlsx to png (Portable Network Graphic)
xlsx to rtf (Rich Text Format)
xlsx to tiff (Tagged image file format)
xlsx to txt (Text Document)
xlsx to xls (Microsoft Excel Spreadsheet)
xlsx to xml (Extensible Markup Language)

Convert XLSX file