ello ,How can I publish or put an excel file in pentaho server or in dashboard (I use CDE)
Publishing the binary file to the server can be done with the CFR plugin in the Pentaho Marketplace.
GitHub - webdetails/cfr: Community File Repository
This will accomodate letting a user upload on your CDE dashboard. Or you can arrange for some other utility to POST to the REST endpoint.
Retrieving data ...