xlsx package gives programatic control of Excel files using
R. A high level API allows the user to read a sheet of an xlsx
document into a
data.frame and write a
data.frame to a
file. Lower level functionality permits the direct manipulation of
sheets, rows and cells. For example, the user has control to set
colors, fonts, data formats, add borders, hide/unhide sheets,
add/remove rows, add/remove sheets, etc.
Behind the scenes, the
xlsx package uses a java library from
the Apache project, http://poi.apache.org/index.html. This
Apache project provides a Java API to Microsoft Documents (Excel,
Word, PowerPoint, Outlook, Visio, etc.) By using the
package that links R and Java, we can piggyback on the excellent work
already done by the folks at the Apache project and provide this
functionality in R. The
xlsx package uses only a subset of the
Apache POI project, namely the one dealing with Excel files. All the
necessary jar files are kept in package
xlsxjars that is
imported by package
A collection of tests that can be used as examples are located
/tests/. They are a good source of examples of how
to use the package.
Please see http://code.google.com/p/rexcel/ for a Wiki and the development version. To report a bug, use the Issues page at https://code.google.com/p/rexcel/issues/list. Questions should be asked on the dedicated mailing list at http://groups.google.com/group/R-package-xlsx.
Adrian A. Dragulescu, Cole Arendt.
Maintainer: Adrian A. Dragulescu <[email protected]>
Apache POI project for Microsoft Excel format: http://poi.apache.org/spreadsheet/index.html.
The Java Doc detailing the classes: http://poi.apache.org/apidocs/index.html. This can be useful if you are looking for something that is not exposed in R as it may be available on the Java side. Inspecting the source code for some the the R functions in this package can show you how to do it (even if you are Java shy.)
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## Not run: require(xlsx) # example of reading xlsx sheets file <- system.file("tests", "test_import.xlsx", package = "xlsx") res <- read.xlsx(file, 2) # read the second sheet # example of writing xlsx sheets file <- paste(tempfile(), "xlsx", sep=".") write.xlsx(USArrests, file=file) ## End(Not run)
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