In Strategy Developer 9.4.x-10.x, the grid view display limitation for row is 65,536 and for column is 255. If the limitation is exceeded, Developer will show the following two warning messages:

The number of rows in the 'r' report (including headers and data) exceeds the limit of 65536.Only the first 65536 rows will be displayed.

The number of columns in the 'r' report (including headers and data) exceeds the limit of 255.Only the first 255 columns will be displayed.
The maximum RAM usage is 2047 MB (2 GB):

So for example, if users try to export a report with rows and columns lower than 1,048,576 and 16,384, but the export memory consumption is more than 2 GB then the export fails.
KB30293