Convert FODS to PPM

The FODS (OpenDocument Flat XML Spreadsheet) file extension, developed by Oracle, is used for storing spreadsheet data in a plain XML format, making it more human-readable and easier to generate automatically without a spreadsheet editor. Unlike the more common ODS format, which uses a ZIP container, FODS files are not supported by Microsoft Excel but can be opened with OpenOffice Calc. This format was introduced as part of the ODF 1.2 specifications by OASIS.

The Portable Pixmap (PPM) file extension, an image format within the Netpbm family, stores simple, uncompressed images. Introduced in the late 1980s, PPM supports RGB color and grayscale images, making it suitable for basic image processing and conversion tasks. Its plain text encoding simplifies debugging and data manipulation, although its lack of compression results in larger file sizes compared to modern formats. As such, PPM finds limited use in contemporary applications, mainly in educational and experimental settings where ease of implementation and readability are prioritized.