From d71dd36d56268319df13efe4a24819d4984a79dd Mon Sep 17 00:00:00 2001
From: Davis Henckel <51898571+DavisHenckel@users.noreply.github.com>
Date: Fri, 26 Nov 2021 12:17:39 -0800
Subject: [PATCH] First version of file, with Image.

---
 FAQ/How to Write to an Existing Excel File.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/FAQ/How to Write to an Existing Excel File.md b/FAQ/How to Write to an Existing Excel File.md
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--- a/FAQ/How to Write to an Existing Excel File.md	
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+# Write to an Existing Excel File
+### Enumerate the Excel File
+```powershell
+$ExcelPkgFile = Open-ExcelPackage -Path  "C:\Test\file.xlsx"
+```
+Contents of file.xlsx:
+![ExcelFileContents](/images/FAQ_Images/ExcelFileContents.png)
+### Enumerate the Worksheet to View or Modify the Data
+```powershell
+$WorkSheet = $ExcelPkgFile.Workbook.Worksheets["sheet1"].Cells #open excel worksheet cells from worksheet "sheet1"
+```
+Visual of Data Structure:
+![DataStructureExcelPkg](/images/FAQ_Images/DataStructureExcelPkg.png)
+
+Modify a specific value by accessing row/col like a 2D Array:
+```powershell
+$WorkSheet[1,4].Value = "New Column Header" #Starts at index 1 not 0
+```
+