| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent know-how from leaking out even in an environment where users with ill intent are present, and prepare a spreadsheet that keeps personal information or the like confidential by restricting startup according to the environment and the user. <P>SOLUTION: A spreadsheet program add-in 110 that can be added to a spreadsheet program and protected from alteration has a mathematic function/macro invalidating function to create a new spreadsheet by removing macros and calculation formulas from the original spreadsheet and leaving only the results of calculation and a secure check code incorporating function to add a secure check code 114 to the new spreadsheet to make it a secure Excel 116, wherein the secure check code 114 is executed at the time of starting up the secure Excel 116 and has a function to suspend the startup of the secure Excel 116 if the computer in which the startup is to take place fails to satisfy prescribed conditions. <P>COPYRIGHT: (C)2012,JPO&INPIT |
