Complex sentence: These services originally targeted files such as PDFs, word processor documents, and spreadsheets, however many remote file storage services are now aimed at allowing users to share and sychronize all types of files across all the devices they use.
Split into simpler sentences: These services originally targeted files such as PDFs, word processor documents, and spreadsheets. However many remote file storage services are now aimed at allowing users to share and sychronize all types of files across all the devices they use.