Konverter RAR-filer til XLTM i Java

What is RAR file format?

RAR is a file format used for compressing and archiving files. It was developed by Eugene Roshal, a Russian software engineer, and was released in 1993. The RAR format is commonly used for sharing large files due to its high compression efficiency, which can often result in smaller file sizes than other compression methods. This makes it an ideal format for users who need to transfer large files over the internet or other networks.

The main advantage of RAR over other file formats is that it can be used to create multi-volume archives. This means that large files can be split into several smaller files, which can then be combined into a single file when needed. This allows for greater flexibility in storage and transmission, as users can transfer the smaller files more easily and then recombine them later.

RAR files can be password-protected and encrypted for added security. This is especially useful when transferring sensitive data over the internet. When creating a RAR file, users can choose to encrypt it with a password, which will be required to open the file. This makes RAR a popular choice for sharing confidential documents and files.

RAR files are typically identified by the .rar extension, and can be opened using WinRAR, a proprietary file archiving utility. WinRAR is available for Windows, Mac, and Linux operating systems, and supports a variety of compression formats, including RAR, ZIP, and 7Z. It also includes features such as file splitting, password protection, and recovery volumes, which can be used to recover data in case of a file corruption or system crash.

What is XLTM file format?

XLTM is an XML-based file format used by Microsoft Excel to save spreadsheet data. It is an alternative to the XLSX file format, which is the current default format for new spreadsheets created in Excel. XLTM files are especially useful for workbooks that contain macros or other automation code, as they allow the code to be saved along with the data. They provide added security as they can be password protected and also allow for digital signing. XLTM files are not supported by all spreadsheet applications, so it is important to make sure that the file is opened with the program that created it.