I use a text editing program & go 1 by 1. Its boring - so thank you for doing it.
Excel - I wouldn't have thought of that, but I used LibreOffice, exported it as csv & did some awk magic. Some things I noticed:
* quotas.NA - that's a long abbreviation & its a small amount of space
* restStr.Sample & quotasStr.Sample- the text that a user enters into the box 'Mon' matches up with the abbreviation in UI.Mon, so I changed them. It won't work otherwise, but you should really test out the Quotas & Reboot pages with a schedule in there if you can.
* AM/PM - I switched the translations to the prefix, so you get 下午 10:30 like you are supposed to. Sorry, there is going to be a space there - I think.
* the makefile needs 1 line translated. This will be visible by users in the plugins page & the languages selection area. I know this is wrong, so maybe you can improve it. Just leave the ZH-CN (so even Finnish people can know what language is there) & you can translate everything else:
中文(简体)ZH-CN language strings for Gargoyle web interface
Lastly, the menu names (for each page) aren't translated. There is menu.txt & each plugin-gargoyle-* has a multi-language file that you add on to. There is a small fix I had to make that supports a language code with a dash: [ZH-CN]=Something so even if you do add them, you need to also have that 1 line fix on your router.
So from now on, no more excel files. If you don't have a gitbub account, go here:
https://github.com/BashfulBladder/gargoyle
and on the bottom right download the zip file. Extract & make the changes. Zip up just SimplifiedChinese and get it to me somehow.
Very exciting (look, I wrote the whole internationalization thing). Thanks a lot for Simplified Chinese!
Here is the package & some pictures:

- RAccess.png (184.65 KiB) Viewed 317082 times

- lang.png (57.55 KiB) Viewed 317082 times
TP-Link WDR3600 v1.1 running 1.5.10+ L10n-English (Built 20130922 - OpenWrt r38093)
TP-Link WDR4300 running 1.5.10+ i18n-English (Built 20131010 - OpenWrt r38286)
https://github.com/BashfulBladder/gargoyle-plugins/wiki