```

    install.packages('openxlsx')
    library(openxlsx)  
    X <- read.xlsx("data6.xlsx")
    
```

```

    >X <- read.xlsx("data6.xlsx")
    Error in read.xlsx("data6.xlsx") : could not find function "read.xlsx"
    
```
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2023-05-29T07:56:20.530
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2023-05-29T09:52:04.700
2023-05-29T09:52:04.700
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question
rstudio
RstudioでExcelファイルを読み込もうとしてもエラーになります。