Together, these two algorithms work to compress a folder and the files inside, effectively reducing file size. This algorithm further reduces file size by finding reoccurring bits of data and encoding them to take up less file space. It can tell your computer that "it contains ten bits of this type of data," taking up one bit, rather than repeating that same data ten times, which amounts to 10 bits. This method effectively reduces file size by reducing the number of reoccurring bits of data. The algorithm then uses pointers to point back to where the reoccurring data has been seen before in your files. To put it simply, LZ77 will look for sequences of data in your files that reoccur, which often is a lot. The most common is the "DEFLATE" algorithm, a combination of LZ77 and Huffman codes. When I try to open it in WinRAR, it looks like Compressed Zip Folder is invalid Windows is. I downloaded it to my Windows 10 system and extracted its contents. When you compress a folder to zip, it works by applying certain compression algorithms to the files within the folder. I received the zip data file as an email attachment.
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