locked

Excel Sheet Locked For Editing Error. That will happen if you have two (or more) instances of excel loaded, rather than loading all the workbooks in the same instance. The file might be locked because:

You should see a tab with a list of the sheets at the bottom of the workbook. A user is reporting that they cannot open an excel file (on a shared folder) as it is locked for editing by another user. Public datatable exceltodatatable(string path) { var pck = new officeopenxml.excelpackage();