Konverter 7Z-filer til XLSX i Java

What is 7Z file format?

The 7Z file format is a popular open source file format used for both archiving and data compression. It was created by Igor Pavlov and is used by the 7-Zip archiver to create compressed archives. The 7Z format is popular because it offers a high compression ratio and the capability to compress many types of files, including executable files, Office documents, and multimedia files. The 7Z format is also increasingly being used as an effective way to transfer large files over the internet due to its low file size and strong security features. Compressed archives can be password protected and encrypted in the 7Z file format for additional security. Additionally, 7Z archives can be split into multiple volumes or parts for easy transmission over the internet or storage on external media. The 7Z file format is very popular in the open source community, with support for it available in a variety of archiving programs, including 7-Zip, PeaZip, and WinRAR, among others. It is commonly used to compress large files on Windows and Linux systems.

Many developers are beginning to look to the 7Z file format as an effective way of delivering software, as it is an efficient way to bundle multiple files into a single archive. Additionally, the 7Z format has the advantage of being able to compress files within an archive without the need to extract them first. Overall, the 7Z file format is a powerful and efficient way to package and transport both small and large files. It offers a high degree of security and strong compression, making it an ideal choice for archiving and transferring data.

What is XLSX file format?

The XLSX file format is a widely used file format for storing spreadsheet data. It was introduced by Microsoft as part of their Microsoft Office suite, specifically for the Excel application. XLSX stands for Excel Open XML Spreadsheet. Unlike its predecessor, the XLS format, which was based on a proprietary binary file structure, XLSX is based on the Open XML file format.

XLSX files are structured as a collection of XML files compressed into a single ZIP archive. This XML-based structure allows for more efficient storage and faster data processing. XLSX files store data in a tabular format, with rows and columns that can contain text, numbers, formulas, and other types of data. They also support formatting options such as cell styles, fonts, colors, and conditional formatting.

One of the advantages of the XLSX format is its compatibility across different platforms and software applications. Many spreadsheet programs, including Microsoft Excel, Google Sheets, and LibreOffice Calc, can open and edit XLSX files. This makes it easy to share and collaborate on spreadsheet data with others, regardless of the software they are using.

XLSX files also offer features like data validation, filtering, sorting, and the ability to create charts and graphs based on the data. Additionally, XLSX files can contain multiple sheets within a single file, allowing users to organize and manage different sets of data within a single document.