New offline tool was 1.2 was put on GSTN website on 1-9-17 The JSON file created by previous tools can not be read as there are structure changes. Offline java tool which imports excel sheet or csv sheets has problem importing multi rate GST in 1 invoice it accepts only the last line of that bill eg. Bill No taxable GST G-005 1000 5% G-005 2000 12% when complete excel sheet is imported it accepts only the second line. So if you make bill with MIX GST do not import the excel file it imports without errors but there will be problems afterwards. Instead of this import import b2b.csv Other important point is with HSN viz summary If you are selling edible oil HSN description measure UQC (unit quantity) 1508 xyz oil 15KgTin 1508 xyz oil 15lit tin 1508 xyz oil 5lit jar 1508 xyz oil 1lit bottle it will accept only 1 line per HSN so at present you have to manually sum the quantity , taxabl