As I said, companies still using manual processes because they haven’t gotten any of their processes turned into custom or off-the-shelf software might do that but that is essentially where most of the industries were in the 90s and now most are on generation 2-3 at least of custom software for their industry or even their company specifically for processes requiring data exchange.
Many industries also created standardized formats based on XML at some point which is largely why they still use XML, e.g. ONIX in the publishing industry. Entire industries of third party handling for data for certain industries have developed since the times when sending Excel files to each other was common.
As I said, companies still using manual processes because they haven’t gotten any of their processes turned into custom or off-the-shelf software might do that but that is essentially where most of the industries were in the 90s and now most are on generation 2-3 at least of custom software for their industry or even their company specifically for processes requiring data exchange.
Many industries also created standardized formats based on XML at some point which is largely why they still use XML, e.g. ONIX in the publishing industry. Entire industries of third party handling for data for certain industries have developed since the times when sending Excel files to each other was common.