You need to narrow down your requirements (what kind of data needs to be compared, and in which format?). Then check if there is already a software available (commercial or free) that fulfills your needs. Based on that, decide if its better (i.e. cheaper) to implement the functionality yourself, or use the other software.
Don't reinvent the wheel.
There are quite a few tools out there that specialise in this sort of thing, my gut feeling is that you can find something ready made that does what you need.
As a side note, that tool may also be a better solution for creating those excel reports than the perl scripts.
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您需要缩小需求范围（需要比较什么类型的数据以及采用哪种格式？）。 然后检查是否已经有可用的软件（商业或免费）可以满足您的需求。 在此基础上，决定自己实现该功能是否更好（即更便宜），还是使用其他软件。
不要重新发明轮子。
有很多专门从事此类事情的工具，我的直觉是你可以找到现成的东西来满足你的需要。
附带说明一下，该工具也可能是比 Perl 脚本更好的创建 Excel 报告的解决方案。
You need to narrow down your requirements (what kind of data needs to be compared, and in which format?). Then check if there is already a software available (commercial or free) that fulfills your needs. Based on that, decide if its better (i.e. cheaper) to implement the functionality yourself, or use the other software.
Don't reinvent the wheel.
There are quite a few tools out there that specialise in this sort of thing, my gut feeling is that you can find something ready made that does what you need.
As a side note, that tool may also be a better solution for creating those excel reports than the perl scripts.