If you get an error message like one of these:
TypeError: 'int' object is not callable
TypeError: 'float' object is not callable
TypeError: 'str' object is not callable
This probably means that you are trying to call a method when a property with the same name is already available.
Simply change the method call into a property access.
For example, if a line like this causes an error message like one of those above:
rowcount=worksheet1.rows()
Try changing the line to this:
rowcount=worksheet1.rows