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Monthly Archives: October 2021
XLSX vs XLSB – How to Reduce Excel File Size?
XLSX and XLSB are two popular Spreadsheet file formats by Microsoft Excel to store large amounts of data in Workbooks. However, the presence of formulas, user data, and objects (such as shapes) in these files can considerably increase the file …
Posted in Spreadsheet
Malicious PDF files and How to Protect From These?
Portable Document Format (PDF) is a digital file format for sharing content on devices like computers, phones, tablets, and other e-readers. But how secure is the PDF file? Being popular for publishing content that includes text, images, hyperlinks, …
Posted in PDF
ZIP Bombs – Exploding Your Storage
A zip bomb is a compressed ZIP archive file that halts or crashes the system which reads it. The decompression software, when uncompresses such an archive file, takes an enormous amount of disk space, processing time, or memory. This makes …
Posted in Compression Tagged Compression algorithms, Huffman encoding, Lempel-Ziv compression, bzip2