How should I maintain backups or exports of all the data in the software?

Find out the steps to take backup in BUSY data 
 Step 1: Open BUSY and select Backup Data option from Company tab.
 Step 2: Choose the company that you want to backup.
 Step 3: Enter your username and password if required and select the location where you want to save your backup file.
 Step 4: Select the financial year that you want to backup, either All F.Y. or Selected F.Y. and click on the OK button to start the backup process.
 For export all BUSY data of your company you can use xml feature of BUSY 
 Find out the steps to do use xml feature 
 Process of Data Export
 Step 1: Go to Administration 
 Step 2: Click on Data Export Import
 Step 3: Click on Data Export/Import XML
 Step 4: Click on Export Data option and then click on Masters or Transactions option whichever you want to export
 Step 5: Select the fields of masters or transactons as per your requirement
 Step 6: Specify the path of exported file and then click in export button, it will take few minutes to export data in XML in spcified path
 Note : Xml export feature can be only useful in case you transfer data from BUSY to BUSY otherwise you have to export your data on excel one by one report