Unable to change the number of DECIMAL Places in UNIT MASTER

In case, if you ever tried to change the number of DECIMAL places in the UNIT MASTER, (wherein voucher data exists for the same) you may have noticed that the DECIMAL places field appears disabled. Follow the underneath steps to change the DECIMAL places if the field has been disabled :-

1) Create a NEW Company in Tally
2) Next, create the UOM (Unit of Measurement) for which you need to change the DECIMAL Places. Set the Decimal places as required.
3) Close the NEW Company.

4) Open your original Company which contains data.
5) Next, export all Masters (Option : Gateway of Tally >> Display >> List of Accounts >> Alt+E". Next select the option "All Masters" and "XML" format. This will export the Masters data into "MASTER.XML" file
6) Next, export all Vouchers (Option : Gateway of Tally >> Display >> Daybook >> Alt+E". This will export the Vouchers data into "DAYBOOK.XML" file
7) Close the original Company

8) Open the NEW Company that you created in Step 1
9) Use option "Import of Data >> Masters". Specify the MASTER.XML with full-path and select option "Ignore duplicates"
10) Use option "Import of Data >> Vouchers". Specify the DAYBOOK.XML with full-path.

This way all data from your original Company is transferred into the NEW Company having necessary DECIMAL places in the UOM (as changed in Step 2).