upgrade_old_files: Convert older scheme versions of files to newer newer versions
Description
Only the newest versions of xlsx and xml files can be processed
by this package. To gurantee, this function provides a mechanism to convert
older versions of xlsx and xml files to newer versions.
Usage
upgrade_old_files(file, to = scheme_active()$version)
Value
if a conversion has been done, file name of upgraded spreadsheet
(BASENAME(x).to.EXTENSION(x) where x is the original file
name and to is the new version), otherwise NULL.
Arguments
file
file name of xlsx or of xml file containing scheme
metadata or structure
to
version to upgrade to. Any version supported is possible, downgrade
is not supported.