R Officer package is not able to read old PPT files of type Windows Presentation 97-2003. It gives below error.
simpleError in zip::unzip(zipfile = newfile, exdir = folder): zip error: Cannot open zip file
C:\Users\user1\AppData\Local\Temp\RtmpeYD5pQ\file41fc3c39b6.pptfor reading
in file zip.c:238
>
below is the sample code
content <- read_pptx(fileName)
data <- pptx_summary(content)
The content object should return rpptx object.