Convert WMZ to OTB

The WMZ file extension stands for Compressed Windows Metafile, a format developed by Microsoft to store vector graphics in a compressed form using Gzip compression. Initially used in older Microsoft Office documents to optimize file sizes for embedded images, WMZ files have become less common with the advent of more modern formats like EMF. These files can be decompressed using utilities like WinZip or 7-Zip, and the resulting WMF files can be viewed or edited in applications such as Microsoft Office and Adobe Illustrator.

The OTB (Over The Air Bitmap) file extension, developed by Nokia, is used for transmitting black and white bitmap images between mobile phones, particularly Nokia and Siemens models. These images, with a maximum resolution of 255x255 pixels, are often sent via SMS in either hexadecimal text or binary format. Historically, OTB files were popular in the early days of mobile communication for sending simple graphics, icons, and wallpapers when data transmission speeds were limited.