Go to “warehouse”
Open “Stock Item Bulk Edit”
Use Filters (Classification - Brand - Tag)
Click on “Column” to specify columns
Click “generate”
First way (Edit on fields)
Edit any field need to edit
Click “Save”
Second way (Export to Excel then import the sheet again)
Click on “More Actions” then “Export Excel”
Edit your Excel sheet
Click on “More Actions” then
Click “Import Excel” then choose the Excel sheet
Click “Save”