Are there any example projects where the following is happening:
1. Initial Spreadsheet control is blank.
2. Upon selection of a an excel file .. loading it into the spreadsheet.
3. Spreadsheet is in read only format.
I have looked at the following demo...
but it is preloading something that 1. I do not want, 2. i cannot even find the json file it is uploading.
I have tried to use the export function (to JSON) to export the initially loaded products json file and then reimport it using the code in the controller.... but it gives me serialization errors.