We often see issues with uploading CSV files due to special characters such as commas and double quotes in the CSV data. One solution is to use an Excel Macro to export the data using double quotes.
Step 1 - Open your CSV file in Excel > Find and replace all instances of double quotes (").
Step 2 - Follow the instructions provided in this Microsoft KB article. However, instead of using the macro provided in the Microsoft KB article, use the one below in its place.
' Dimension all variables.
Dim DestFile As String
Dim FileNum As Integer
Dim ColumnCount As Long
Dim RowCount As Long
Dim MaxRow As Long
Dim MaxCol As Long
' Prompt user for destination file name.
DestFile = InputBox("Enter the destination filename" _
& Chr(10) & "(with complete path):", "Quote-Comma Exporter")
' Obtain next free file handle number.
FileNum = FreeFile()
' Turn error checking off.
On Error Resume Next
' Attempt to open destination file for output.
Open DestFile For Output As #FileNum
' If an error occurs report it and end.
If Err <> 0 Then
MsgBox "Cannot open filename " & DestFile
' Turn error checking on.
On Error GoTo 0
MaxRow = ActiveSheet.UsedRange.Rows.Count
MaxCol = Selection.Columns.Count
MsgBox "Processing this many rows: " & MaxRow
MsgBox "Processing this many columns: " & MaxCol
' Loop for each row in selection.
For RowCount = 1 To MaxRow
' Loop for each column in selection.
For ColumnCount = 1 To MaxCol
' Write current cell's text to file with quotation marks.
Print #FileNum, """" & Selection.Cells(RowCount, _
ColumnCount).Text & """";
' Check if cell is in last column.
If ColumnCount = MaxCol Then
' If so, then write a blank line.
' Otherwise, write a comma.
Print #FileNum, ",";
' Start next iteration of ColumnCount loop.
' Start next iteration of RowCount loop.
' Close destination file.