I have sql 2014 ent edition that installed with SSRS, this version of sql servers was actually an upgrade version from sql 2008 R2. Today I have a report that having a row size more than 65536 and somewhat report subscriptions failed to sending this report with following errors. from what I understood this sql 2014 ssrs should have bigger row limit size.
An updated rendering extension for Microsoft Excel 2007–2010, supported both by Report Builder and the SSRS web rendering controls (both covered in this chapter). The maximum number of rows you can export from an SSRS report to an Excel worksheet is now 1,048,576, the maximum number of columns you can export is now 16,384, and the maximum number of colors supported for generated content is 16 million. The export format is Open Office XML (OOXML), and files are generated as zip-compressed *.xlsx archives.
An updated rendering extension for Microsoft Word 2007–2010 (and 2003). It also supports the OOXML standard, generating zip-compressed *.docx files. Note that in order to open *.docx and *.xlsx files, Microsoft Office clients must be at version 2007 or later, or you must install the Office Compatibility Pack (available free from Microsoft’s download site)
Failure sending mail: Excel Rendering Extension: Number of rows exceeds the maximum possible in a worksheet of this version. Rows requested: 105676. Maximum rows: 65536.Mail will not be resent.