Konverter LZ-filer til XLSM i Java

What is LZ file format?

LZ File Format is an open-source archive file format developed by Igor Pavlov and used mostly to compress and decompress other files. It is widely used in the Windows and Linux operating systems, and is supported by many programs, such as WinZip, 7-Zip, WinRAR, and WinAce. The format’s name came from the developer’s initials — Lempel-Ziv. Files stored in LZ format contain compressed data in a format similar to a zip or tar file. They are often smaller than the original files, and when opened, can be decompressed to restore the original data. The primary benefit of using LZ format is that it allows the user to reduce the amount of data they must store without losing any of the quality of the original files. The LZ file format is also sometimes referred to as a “Lempel-Ziv archive” and is considered a “lossless” compression format, as none of the data is lost when a file is compressed using the LZ format. This is because unlike lossy compression formats, LZ format retains all of the original data when files are compressed and decompressed. The LZ format is also highly flexible and able to store a variety of different types of data, including text, audio, video, and image files. It is also compatible with encryption tools, making it a great choice for users who need to protect their data. Overall, there are many benefits to storing data in the LZ file format, such as reduced storage space and the ability to encrypt data for security. If you are looking for an easy-to-use, flexible, and reliable archive file format, LZ is an excellent choice.

What is XLSM file format?

The XLSM file format is an extension of the XLSX file format used for Microsoft Excel workbooks. Similar to XLSX, it is based on the Open XML file format and is associated with the Excel application. The “M” in XLSM stands for “macro-enabled”, indicating that it supports the inclusion of macros.

XLSM files store spreadsheet data, including worksheets, formulas, charts, and other elements commonly found in Excel workbooks. Additionally, XLSM files allow the embedding of VBA (Visual Basic for Applications) macros within the workbook. Macros are scripts written in VBA that automate tasks, perform calculations, and interact with the spreadsheet data.

By including macros in XLSM files, users can create customized functions, automate repetitive tasks, and enhance the functionality of their Excel workbooks. Macros can be written to manipulate data, generate reports, perform complex calculations, or interact with other applications.

When opening an XLSM file, Excel prompts the user to enable or disable macros due to security concerns. Enabling macros allows the embedded VBA code to execute, while disabling macros prevents potential security risks associated with malicious code.

XLSM files provide advanced features and customization options for Excel users who require automation beyond the capabilities of the standard XLSX format. They are commonly used in business environments, financial modeling, data analysis, and other scenarios where complex calculations and automation are necessary.