CSV string from GET request incomplete when storing in variable - vba

Question

In VBA, I currently have code that returns a CSV string from the internet. However, it seems like the entire file is not being captured when I try to store it in a string variable using .responseText
I've heard string sizes are limited, which makes this problem understandable (I'm trying to store 1000 rows of data into a variable - which is probably not possible). I was wondering if there is a way to download the CSV file straight from the source given that I have the URL to get the response? Here is the relevant code that I have:
Dim JiraReq As New MSXML2.XMLHTTP60
With JiraReq
' Create Session
downloadUrl = https://myurlishere.atlassian.net
' This is not the actual form of the URL, but it does
' successfully grab the CSV string (but the string variable
' will not store all of it - probably because of the size)
.Open "GET", downloadUrl, False
.setRequestHeader "Authorization", "Basic " + EncodeBase64(username + ":" + password)
.setRequestHeader "Cache-Control", "no-cache"
.setRequestHeader "Pragma", "no-cache"
.send
End With
CSVData = JiraReq.responseText
If JiraReq.Status = 200 Then
Set oStream = CreateObject("ADODB.Stream")
oStream.Open
oStream.Type = 1
oStream.Write JiraReq.responseText
Filename = "C:\file" & i & ".csv"
oStream.SaveToFile Filename, 2
oStream.Close
End If
For reference, I have looked at the following links to try to solve this issue:
Arguments out of acceptable range
Downloading file from web with VBA
HTTP response text returning incomplete Data

Answer 1

My code ended up looking like this:
For i = 1 To pageCount Step 1
' MsgBox "Entering For Loop"
Dim startNumber As Integer
startNumber = (i - 1) * 1000
Dim downloadUrl As String
downloadUrl = "https://myurl.atlassian.net/sr/jira.issueviews:searchrequest-csv-current-fields/" & CStr(filterID) & "/SearchRequest-" & CStr(filterID) & ".csv?tempMax=1000&pager/start=" & CStr(startNumber)
With JiraReq
' Create Session
Debug.Print "Getting page " & CStr(i) & " of " & CStr(pageCount)
.Open "GET", downloadUrl, False
.setRequestHeader "Authorization", "Basic " + EncodeBase64(username + ":" + password)
.setRequestHeader "Cache-Control", "no-cache"
.setRequestHeader "Pragma", "no-cache"
.send
End With
file_name = "C:\VBA\file" & i & ".csv"
If JiraReq.Status = 200 Then
Set oStream = CreateObject("ADODB.Stream")
oStream.Open
oStream.Type = 1
oStream.Write JiraReq.responseBody
oStream.SaveToFile file_name, 2 ' 1 = no overwrite, 2 = overwrite
oStream.Close
End If
I had to change from .responseText to .responseBody.