Clears worksheets with specified names or indices in a
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The name or the index of the worksheet to clear
Clearing a worksheet means to clear all the cells in that worksheet. Consequently, the saved workbook should be smaller in size. Clearing a worksheet can be useful if data sets in a worksheet need to be replaced, i.e. data are first read, modified in R and finally written back to the worksheet. Without clearing the worksheet first, (parts of) the original data may still be visible if they occupied a larger range of the worksheet.
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# mtcars xlsx file from demoFiles subfolder of # package XLConnect demoExcelFile <- system.file("demoFiles/mtcars.xlsx", package = "XLConnect") # Load workbook wb <- loadWorkbook(demoExcelFile) # Clear worksheets named 'mtcars' and 'mtcars2' clearSheet(wb, sheet = c("mtcars", "mtcars2")) # Clear 3rd worksheet clearSheet(wb, sheet = 3)
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