How to read and write excel file

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I want to read and write an Excel file from Java with 3 columns and N rows, printing one string in each cell. Can anyone give me simple code snippet for this? Do I need to use any external lib or does Java have built-in support for it?

I want to do the following:

for(i=0; i <rows; i++)
     //read [i,col1] ,[i,col2], [i,col3]

for(i=0; i<rows; i++)
    //write [i,col1], [i,col2], [i,col3]

Mar 24, 2022 in Database by Edureka
• 13,630 points
144 views

1 answer to this question.

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When broken down into steps, reading an excel file is also quite straightforward.
From an excel sheet, create a workbook instance.
Get to the sheet you want.
Row number should be increased.
cycle through all of the cells in a row
Steps 3 and 4 should be repeated until all data has been read.
The output stream should be closed.
answered Mar 25, 2022 by Edureka
• 13,630 points

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