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Convert XLSX to CSV

You can convert XLSX file to CSV as well as to variety of other formats with free online converter.

How to convert xlsx to csv?

How to convert csv to xlsx?
Step 1
Download xlsx-file
Select a file from your computer, Google Drive, Dropbox or drag and drop it on the page
Step 2
Select files «to csv»
Select files csv or any other format you need (more than 100 supported formats)
Step 3
Download your csv file
Wait for your file will convert and you will able to download it immediately csv -file

Office Open XML Document

File extension
.xlsx
File category
Description
XLSX – is an e-book created with one of the versions of the Excel program older than 2007. Thus the data have the form of the tables consisting of columns and lines. Each table is divided into cells that have a unique address, which consists of numeric and alphabetic characters. Cells contain data, both manually entered, and information that was obtained as a result of calculations. The extension allows the use of images, diagrams and graphic information. XLSX files are formatted based on the Open XML standard, which allows you to compress data by the type of ZIP. The archive contains a file for the description of the table and individual files for each of its worksheets. The format makes it possible to develop and edit complex multi-sheet spreadsheets with a variety of formulas and data sources.
Technical details
Using the XLSX extension helps to optimize the content of the file, the technology of managing and restoring information. The format significantly increases the capabilities of binary files of obsolete Excel program variants. All applications that display XML can work correctly with the XLSX extension. Due to the preservation of data in XML format, reliable data storage is provided. This allows you to transfer files over local networks seamlessly.
Programs
Microsoft Office
LibreOffice
Kingsoft Office
Google Docs
Main program
Microsoft Office
Developer
Microsoft
MIME type
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Comma Separated Values File

File extension
.csv
File category
Description
CSV – is a special text format, the data inside of which are separated by commas. Developed in the early 70-ies of the XX century for importing various table information and transferring bulk information between databases in text format. Each line of the file acts as one row of the database. Using the spreadsheet application, CSV files are able to be organized into cells and added to the appropriate database. The parameters of each column are separated by commas, if there are reserved symbols (for example, a semicolon or a new line), double quotes play the separator role. This allows you to freely transfer information between different programs. CSV in some cases are сalled flat files. They can be opened by most editors able to work with tables and texts, including both authentic Excel and open source utilities like Apache Open Office and Libre Office.
Technical details
On personal computers, the CSV extension includes many values represented as ASCII tables. In this case, the text strings are clearly organized, so all values are separated by commas or double quotes (if there are reserved symbols). The use of different delimiters allows the availability of unequal encoding.
Programs
Microsoft Excel
Microsoft Works
Corel Quattro Pro
Apache OpenOffice
LibreOffice
Microsoft Notepad
Libre Office
MobiSystems OfficeSuite Pro 7
Developer
Microsoft
MIME type
text/comma-separated-values