Dear prospect client, I have rich experience in the same area as of your requirement i.e. reading/writing the data from many file formats CSV, excel. Indeed, following the best practices.
Relevant Skills and Experience
VB, CSV, Excel, Built in excel functions (VB6)
Proposed Milestones
£17 GBP - Tool that reads/writes the data in workbook.
Would need the workbook template to build the script accordingly.