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One small VB.Net class to read/write values to/from Excel worksheet (For Today)

Class:**XSLX_Engine

**Components:

**1. Method called OpenXSLXConnection

**- takes as parameter path\filename to Excel xslx file.

- Opens data connection to file

**2. Method called CloseXSLXConnection

**- Closes data connection

**3. Function called ReadCell

**- Parameters:

i. Worksheet (String) Name of worksheet in xslx file

ii. ColumnNumber (String) Column in worksheet E.g. "BB"

iii. RowNumber (Integer) Row in worksheet

- Reads value at that cell and returns String:

i. If cell has value, returns value

ii. If cell is empty, returns empty string""

4**. Method called WriteCell**

- Parameters:

i. Worksheet as in ReadCell

ii. ColumnNumber as in ReadCell

iii. RowNumber as in ReadCell

iv. CellValue (String)Value to be written

- Writes CellValue to the cell.

Usage:

1. I'll instantiate an object of XSLX_Engine.

2. I'll call OpenXSLXConnection method on the object.

3. I'll repeatedly call ReadCell/WriteCell to read/write values into cells in the xslx file.

4. I'll call CloseXSLXConnection.

Evner: .NET, Visual Basic

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