I have created a macro that imports a file and makes necessary changes. The
file location and name are embedded in the macro and must be change prior to
running the macro.

How can I present a dialog box that allows the user to select the file to be
imported?

My current macro is below:

Sub FixWorksheet()
'
' FixWorksheet Macro
' Macro recorded 8/10/2007 by Robert Harris
'
With ActiveSheet.QueryTables.Add(Connection:= _
"TEXT;\\server\folder\filename.txt" _
, Destination:=Range("A1"))
.Name = "filename"
.FieldNames = True
.RowNumbers = False
.FillAdjacentFormulas = False
.PreserveFormatting = True
.RefreshOnFileOpen = False
.RefreshStyle = xlInsertDeleteCells
.SavePassword = False
.SaveData = True
.AdjustColumnWidth = True
.RefreshPeriod = 0
.TextFilePromptOnRefresh = False
.TextFilePlatform = xlWindows
.TextFileStartRow = 1
.TextFileParseType = xlDelimited
.TextFileTextQualifier = xlTextQualifierDoubleQuote
.TextFileConsecutiveDelimiter = False
.TextFileTabDelimiter = True
.TextFileSemicolonDelimiter = False
.TextFileCommaDelimiter = False
.TextFileSpaceDelimiter = False
.TextFileColumnDataTypes = Array(2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 1, 2, _
1, 3, 1, 1, 3, 3)
.Refresh BackgroundQuery:=False
End With
Rows("1:4").Select
Selection.Delete Shift:=xlUp
Range("AB2").Select
ActiveCell.FormulaR1C1 = _

"=IF(AND(OR(RC[-16]=""OTHER"",RC[-16]=""SELF""),LEFT(RC[-26],LEN(RC[-17]))=RC[-17]),IF(RC[-27]=0,"""",RC[-27]),"""")"
Range("AC2").Select
ActiveCell.FormulaR1C1 =
"=IF(AND(OR(RC[-17]=""OTHER"",RC[-17]=""SELF""),LEFT(RC[-27],LEN(RC[-18]))=RC[-18]),RC[-20],"""")"
Range("AB2:AC2").Select
Selection.AutoFill Destination:=Range("AB2:AC10000"), Type:=xlFillDefault
Columns("AC:AC").Select
Selection.NumberFormat = "m/d/yyyy"

'
End Sub

Thanks for your help. (I am just starting to explore programming so be as
specific as possible)