<p>for the most basic read of a text file, use <code>open</code></p>
<p>example:</p>
<pre><code class="lang-auto">Dim FileNum As Integer
Dim DataLine As String
FileNum = FreeFile()
Open "Filename" For Input As #FileNum
While Not EOF(FileNum)
Line Input #FileNum, DataLine ' read in data 1 line at a time
' decide what to do with dataline,
' depending on what processing you need to do for each case
Wend
</code></pre>
<p><span class="hashtag-raw">#Author</span> note - Please stop adding in <code>close #FileNum</code> - it’s addressed in the comments, and it’s not needed as an improvement to this answer</p>