Hi,
I have converted messi data into a readable data structure and saved it in test_final.
In the worksheet R-Data, I have then written the final data and saved it as xlsx.
Now I am missing the possibility to save only updated R-Data in the xlsx file, without changing existing other (Pivot) worksheets.
Does anyone know a possible solution? 
Thanks in advanced 
# require(openxlsx)
## Create Workbook object and add worksheets
wb<-createWorkbook("test-final.xlsx")
# add some worksheet
# addWorksheet(wb, "Pivot")
addWorksheet(wb,"R-Data")
# update the data
writeData(wb,"R-Data",test_final)
## Save workbook
## Open in excel without saving file: openXL(wb)
saveWorkbook(wb, "test-final.xlsx", overwrite = TRUE)
# open file in excel
# update only one worksheet
update_WS<-writeData(wb,"R-Data",test_final)%>%
????????