983389-FAQ for XlsIO support autofit for merged cells#1599

KarthikaSF4773 wants to merge 6 commits intohotfix/hotfix-v31.2.2syncfusion-content/document-processing-docs:hotfix/hotfix-v31.2.2from

983389-AutofitMergeCellssyncfusion-content/document-processing-docs:983389-AutofitMergeCellsCopy head branch name to clipboard