HTML format

• Although background colors for controls export to Word documents, background colors for sections such as Body and Page Header or Footer do not.
• The BackgroundImage is not supported when used in TextBox and CheckBox controls embedded in data regions such as Table and Tablix.
• The BackgroundImage is not supported for reports, and for List, Container, Shape, FormattedText, Table, and Tablix report controls.
• KeepTogether property of Table/Tablix is not supported. 
• Some FormattedText tags, for example <b>bi</b> and <s>es</s>, are not exported to Word.
• Image alignments other than the defaults (HorizontalAlignment: Left and VerticalAlignment: Top) are not supported.
• Checkbox color does not affect the color of the square.

OOXML format

Report properties

• The LineSpacing property of a report's style sheet, StartPageNumber property of the report, PrintOnLastPage property of the PageHeader and PageFooter are not supported.
• For Page reports, some of the NumberingStyle property (DocumentMap settings) options are not supported. The supported NumberingStyle options are Decimal, DecimalZero, LowerLetter, UpperLetter, LowerRoman, UpperRoman.
• BackgroundImage is not supported for report item except Shape.
• The BackgroundRepeat property of the BackgroundImage is not supported in Page (Page reports) and Body (RDLX reports).
• For RDLX reports, Background and Border properties of Page Header or Page Footer are not supported.
• Microsoft Word calculates the columns width by the document width. an RDLX report calculates the columns width based on the body width, therefore the width of columns in an exported RDLX report may differ from an original RDLX report.
• In Microsoft Word, the maximum supported page size is 22 inches (55.87 cm) wide and 22 inches (55.87 cm) high. If an exported report exceeds the maximum size, some data may be lost during export.
• In Microsoft Word, a table can have a maximum of 63 columns. If an exported report table has more than 63 columns, then the table is split and therefore an exported document may differ from an original report.
• A repeated Table Footer (the RepeatOnNewPage property of Table Footer) or  multiple repeated headers on a single page are not supported.
• The OverflowPlaceHolder control is not supported.
• If the PrintOnFirstPage property of PageHeader or PageFooter is set to False, then both PageHeader and PageFooter will not be available on the first page of the exported document.
• The report data gets rendered only in first theme if a Page report containing multiple themes is exported to Docx format.

Report controls

• The Inset, Outset, and window-inset border styles (in BorderStyle property) are not supported.
• The Map, Chart, Image, Barcode, SparkLine, Bullet, and CustomControl report controls are exported as an image. If a report control uses the BorderColor, BorderStyle or BorderWidth properties, a report is exported as a table.
• The BorderWidth property of report controls is not exported as is and may differ from the original BorderWidth value.
• PageBreaks are not fully supported. The report contents exported to the Word's table or cell items do not support the page breaks.
• For Shape report control, if the BorderStyle property is set to Double, it is exported as Solid.
• For Line control, if LineStyle property is set to Double/Transparent, it is exported as Solid.
• For BandedList data region, only the BandedList Header is repeated on each page. The BandedList Footer, GroupHeaders and GroupFooters are not supported.
• Tablix data region is exported as a single table without horizontal split.
• For Image control, Border properties and Padding properties are not supported if the Sizing property is set to Clip.
• For Container report control, rounding corners (the RoundingRadius property) are not supported.
• RepeatToFill property for Table and Tablix is not supported.
• Images embedded in a Table data region are not properly supported.
• Pagination is not supported due to difference in the layouts of ActiveReports and Word.
• Page Number in Section (Page N of M(Section)) is not supported.
• KeepTogether property of Table/Tablix is not supported. 
• Horizontal aligned images may overlap in iWord. 
• The properties set to the 'Body' region of a Subreport are not exported.
• If a report contains overlapped report controls, these controls appear side by side in an exported Word document and not overlapped as in the Designer’s preview.
• FormattedText limitations.
  • FormattedText is exported as it is. It does not support all HTML and CSS features.
  • The <a> tag without a href attribute, <abbr> and <q> tags are exported as simple text.
  • For Border Styles - Inset and Outset, the <ul> tags are not exported.
  • The BackgroundColor, BackgroundImage, BorderColor, BorderStyle and BorderWidth properties are not supported.
  • Anchors with an href attribute are exported as hyperlinks.
  • Headers like h1, h2, etc. are exported as corresponding Microsoft Word built-in header styles.
• TableOfContents limitations.
  • The TextAlign, DisplayPageNumber, TextIndent, and Overline TextDecoration properties are not supported.
  • The Source property of the Document Map settings is not fully supported. Only the Headings Only option of the Source property is supported. 
  • If a report uses more than one TableOfContents controls, the properties of the first TableOfContents are applied to the other TableOfContents controls in the exported document. 
  • The FillCharacter property is exported as dots.
  • The background of TOC control appears black on opening exported file in LibreOffice.
• TextBox/CheckBox limitations.
  • If the Format property is set to Numeric or Date, the exported TextBox has a right alignment. Other Format values are exported with the left alignment.
  • The Transparent color for text is exported as white.
  • The Underline for numbered lists, Right-To-Left (RTL) option of the Direction, Angle, ShrinkToFit and Overline TextDecoration properties are not supported.
  • The action Jump to report is not supported.
  • The tb-rl (vertical text) option of the WritingMode property is not supported. TextBoxes with the WritingMode property set to tb-rl are exported as lr-tb.
  • The NoWrap option of the WrapMode property is exported as WordWrap.
  • The LineSpacing property of an exported document will differ from the original report. This is because in Microsoft Word, the line spacing is calculated by the font size value of a report control plus the line spacing value of a report control.
  • For CheckBox control, the CheckAlignment property is exported as MiddleRight for TopRight, MiddleRight, and BottomRight options. Other CheckAlignment options are exported as MiddleLeft.
  • Paddings exceeding 31 inches is exported as border spaces.
  • Right-To-Left text direction does not work in the LibreOffice.
  • On exporting to Word 2013, when the background (shading) and padding are applied on a paragraph, the padding is also applied to the background, so a gap between the border and the background appears on the left side of the paragraph.
  • CharWrap property is not supported.
  • The fields in a TextBox control are evaluated as follows:
    • PageNumber and TotalPages expressions are exported as special fields, evaluated by a text editor (Word or other).
    • The fields placed in Header or Footer are automatically evaluated.
    • The fields placed in the Body should be re-evaluated manually by clicking 'Update field' from context menu.