PURPOSE: A spreadsheet data managing method is provided to easily generate terminal spreadsheet data by a terminal based on spreadsheet which is supplied from a server. CONSTITUTION: Server spreadsheet data is received from a server which supplies spreadsheet data(S110). Header data and table data are obtained from the server spreadsheet data(S130). Terminal spreadsheet data is automatically generated based on the header data and the table data(S150). The terminal spreadsheet data is updated based on user input(S170).
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