Excel 2013 preview was made available earlier this week by Microsoft.

It comes now in two flavors, Excel 2013 Professional (i.e. regular install), or Office 365 Excel 2013 (i.e. runs in a virtual machine, bits are hosted on a Microsoft server and sold on a subscription basis).

xlsgen was tested against Excel 2013 Professional in the following scenarios : read, write, read/write, round-trip. In a corpus of 1200 files plus new files created by Excel 2013.

The surprising score is that Excel 2013 perfectly works in tandem with xlsgen, and no update will be needed.

So all your applications and assets will work as usual whether final clients are using Excel 97, Excel 2000, Excel XP, Excel 2003, Excel 2007, Excel 2010 and Excel 2013.

If Office 365 Excel 2013 is based on the same engine than Excel 2013 Professional, the results should be the same.

So contrary to Excel 2010 which tightened the screws and as a result required 50+ fixes in xlsgen (shipped in xlsgen 2.9), there is no better time to use xlsgen given the confidence that the files will work flawlessly in today's and coming Microsoft Office suites.

Build 3.0.0.46 of xlsgen is a fix pack.

It includes :
- CSV import : support n-string double quotes
- CSV malformedness : support multiline in data fields enclosed in double quotes (CR chars)
- calc engine : support for the TRUNC() function