: It is essentially a zipped archive of XML files, making it much smaller and easier to share via email or educational portals.
The file (Bulgarian for "books.xlsx") is a common sample dataset used in Bulgarian Information Technology (IT) education, particularly for 9th-grade students learning to manage and analyze data in spreadsheet software like Microsoft Excel. It serves as a practical tool for mastering essential digital literacy skills, such as sorting, filtering, and performing calculations. Educational Context
: Learning to organize information alphabetically or numerically by multiple criteria. knigi.xlsx
: It supports modern spreadsheet requirements, allowing for over one million rows and 16,000 columns.
: Extracting specific subsets of data, such as all books by a particular author or those within a certain price range. : It is essentially a zipped archive of
: Beyond Excel, the file can be opened and edited in free or web-based alternatives such as Google Sheets , ONLYOFFICE , or Apple Numbers. How to open, read and edit an .XLSX file - Adobe
: Using basic mathematical operations to find totals, averages, or apply discounts. Technical Characteristics : Beyond Excel, the file can be opened
As an file, it utilizes the Open XML standard introduced by Microsoft in 2007. This format offers several advantages over the older .xls binary format: