Excel and Google Sheets
A spreadsheet book is usually the quickest move, because the data is already in the shape the importers read.
- Split a single sheet into three: one for borrowers, one for loans and one for repayments
- Give every borrower a unique identification number before you start; duplicates in a hand-kept book are the most common import error
- Turn running-balance columns back into dated repayment rows for the bulk upload


