Convert gnm to csv

What is the difference between .gnm and .csv?

Description: Gnumeric Spreadsheet (GNM) is a file type used for storing data and calculations in a spreadsheet application. It is an open source spreadsheet program developed for the GNOME desktop environment and is part of the Gnome Office suite. GNM files can be used for various calculations and data analysis tasks such as graphing, plotting, and sorting.; A CSV file is a comma separated values file commonly used by spreadsheet programs such as Microsoft Excel or OpenOffice Calc. It contains plain text data sets separated by commas with each new line in the CSV file representing a new database row and each database row consisting of one or more fields separated by a comma. CSV files are often opened by spreadsheet programs to be organized into cells or used for transferring data between databases.