ExtJS4.2 based Online Spreadsheet Plugin [Source code available]
Today we have our EnterpriseSheet 3.0 online. You can download and plugin it into your existing app. EnterpriseSheet 3.0 has the following Excel-like functions, build-in formulas, table templates, cell styles, validations, number formats, auto fill and conditional features etc.
EnterpriseSheet 3.0 is based on ExtJS4.2 with Java / MySQL in the backend. To start plugin, please download whole Eclipse project from our site, integrate the backend Java/MySQL code and UI ExtJS files.
For your good words. It did took us a while to release this version, lots of work there. Currently our sheet is based on ExtJS4.2.1. We do find there are couple of issues in the ExtJS4.2.1, however we can live with it now.
We do not have plan to move ExtJS 5.* this year because of time issue. However, we should start merge our sheet into ExtJS5 some period in 2015. Hopefully we can process smoothly.