We can either return an empty R Data Frame and create a separate query in Power BI to read the unzipped files or use a blank query as a source instead of R Script as the source, and do all operations in the single query. Also, I would not be able to use it as a step in the Power BI query. If I use the same query in PowerBI Desktop, it would still download and unzip files, but I would not be able to import the data to Power BI. This script does not return any data frame. Unzip (zipfile=DestinationURL,exdir=unzipfolder) Unzipfolder="\\\\Mac\\Home\\Desktop\\Working\\csv\\CSVFiles" SourceURL=paste(URLFull,i,"_5.zip",sep="")ĭestination="\\\\Mac\\Home\\Desktop\\Working\\csv\\"ĭestinationURL=paste(Destination,i,".zip",sep="")ĭownload.file(url=SourceURL, destfile=DestinationURL, method = "auto", quiet=FALSE) R script I used in R Studio: for(i in 0:4) With few lines of R script, I can easily download and unzip all these files. Hence, I used for loop to get the file number I wanted to download. I wanted to download more than one file which has different URL with an incremental number. Download and Unzip from web using Power BI and R Script: Power BI Desktop uses R.Execute to execute R Script. Here is a simple R data frame in RStudio and Power BI Desktop Currently, R Script imports only data frames to Power BI. Power BI does not have a rich R interface, but I found it does give reasonable error information. Microsoft recommends it is better to write and execute R Scripts in RStudio ( or any other R tools) before you use it in Power BI. R Script as a source in Power BI Desktop: Using R Script, I can download and unzip company house files. Power BI support documented very well regarding how to run R scripts in Power BI. However, Power BI supports R Script, which means I can easily automate my steps.Until Power BI Desktop supports unzip functionality, we can use new R Script in the Power BI Desktop. Chris Webb explains here, how to work with compressed files and why currently all compressed formats are not supported. Quite quickly, I understood Power BI currently does not support all compressed formats.
At least, I wanted to unzip all files using Power BI. I have many files to work with, so I wanted to automate things. But, I was not at all looking forward to downloading each file then unzip so that I can import into Power BI model. I wanted to explore company house data using Power BI. That is what I noticed with Company House data.
Most of the open data source providers supply data in a compressed format, especially when files are large.
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