How do I update multiple records at once in BUSY using Excel import?

In BUSY you can import Master / Voucher from Excel. Let us understandard in detail.
Steps for Import Master from Excel:
Step 1: Open your company, then go to the Administration tab and click on the Data Export Import.
Step 2: Choose the Import Master from MS Excel option and select the type of master that you want to import, such as Items, Accounts, etc. 
Step 3: Here, you need to map the fields in BUSY with the columns in Excel. 
Step 4: After mapping all the columns, select the Excel File Path and enter the Starting & Ending Row and Sheet Number of your Excel file. Then, click on the Import button and wait for the import process to complete.
Steps for Import Vouchers From Excel:
Step 1: Open your company, then go to the Administration tab and click on the Data Export Import.
Step 2: Choose the Import Vouchers from Excel option and select the type of voucher that you want to import, such as Sale, Purchase, etc. 
Step 3: After selecting the voucher type, click on the configure button and create a format for the voucher. Then, map the fields in BUSY with the columns in Excel. 
Step 4: After mapping all the columns, select the Excel File Path and enter the Starting & Ending Row and Sheet Number of your Excel file. 
Step 5: Then, click on the Import button and wait for the import process to complete.
Please refer also document and video tutorials for know more about the import process.