Adding a .CSV file to excel as a sheet in R

Question

I'm able to add a dataframe to excel as a separate sheet. However, I want to be able to add a.CSV file that is already created as a sheet.

Code that works to add dataframe as a sheet:

library(xlsx)
write.xlsx(dataframe, file = excelFileName,
           sheetName=excelsheetname, append=TRUE,row.names = FALSE)

I need to be able to replicate the same thing as above. However, instead of a dataframe, it is a.CSV file. Is there a solution?

Thanks

Answer 1

To start, here is a template that you can use to import an Excel file into R:

library("readxl")
read_excel("Path where your Excel file is stored\\File Name.xlsx")

And if you want to import a specific sheet within the Excel file, then you may use this template:

library("readxl")
read_excel("Path where your Excel file is stored\\File Name.xlsx",sheet = "Your sheet name")

Note: In the R Console, type the following command to install the readxl package:

install.packages("readxl")

Answer 2

It seems like the only step missing in your solution is to first read the CSV file into a dataframe using read.csv or read.table :

library(xlsx)
dataframe <- read.csv(csv)
write.xlsx(dataframe, file = excelFileName,
           sheetName=excelsheetname, append=TRUE,row.names = FALSE)

If you specifically want to add a csv to an excel sheet without first reading it in then that is another story, and you should clarify it in your question.

Answer 3

The following works and suits my needs.

csvDF = read.csv(file = csvFileName, as.is = 1,stringsAsFactors = FALSE, header = FALSE)
write.xlsx(csvDF , file = excelFileName,sheetName=sheetNameInfo, append=TRUE,row.names = FALSE, col.names = FALSE)