IntroductionContact UsCopyrightOn-line Help LibraryWhich file formats are supportedComparison StrategyxlCompare CommandsFile | OpenFile | Recent ComparisonsCompare | BooksCompare | SheetsCompare | ModulesCompare | OptionsView | LayoutView | Ignore FormattingTools | RecalculatexlCompare ActivationHow to activate xlCompare on the another PC?How to restore xlCompare on my PC?License detailsHow to remove trial limits?General Questions Extended View modeDisplay differences in Extended ViewFilter differencesMerge data from two worksheetsUpdate records on the worksheetDuplicate RemoverGet duplicates between 2 listsExtract Unique RecordsCommand Line modeSave changes in the workbookSave comparison report on diskWorking with TXT and CSV filesFilter data you want to compareIgnore error valuesTrace Formula CalculationsMinimize Difference BrowserSynchronize rows and columnsMark differences (changed cells) with colorDatabase ComparisonCompare worksheets As DatabaseManage Primary KeysHide Equal ModulesFilter cells on the worksheetJoin 2 lists in ExcelFind duplicates in ExcelRemove duplicates in ExcelRemove empty rows on the worksheetBulk Merge operationsBulk Undo operationHighlight only results you needVersion ControlUse xlCompare with SVN to resolve conflictsCompare Visual Basic ProjectsCompare controls on the VB FormsMerge controls on the formsMerge contents of the VBA ModulesI've found a problemSending bugreports to Spreadsheet Tools
View | Layout | Portrait (Landscape) menu command
As you already know xlCompare divide it's working area into 2 panes to display compared data.
In some worksheets it is more suitable to have them aligned vertically, one file on the left and another one on the right. This
is default Portrait layout. You can see it on this screenshot:

But, if you are working with worksheets, which have many columns, you can use Landscape layout:

In this case working area is divided into the top and bottom panes, and worksheets are shown one under one.