Think carefully about what and how much you will actually transfer. Doing so requires time and skill. Import data from Tally - #7 by Patch
Start by manually entering representative data. Then use ‘Batch update’ to see the details of the data format you must create externally.
Data tables are linked by UUID/GUID ie key, or code field. Once data has been entered in a data table / Manager tab; use batch update to get the UUID/GUID for each entry.
Enter data starting with independent tables then tables linked to previous entered data.