Native Microsoft Office files (Word, Excel, and PowerPoint) are not supported in the IT SUITE apps as they are proprietary Microsoft file formats. These files should be converted to PDF for compatibility before being imported. This is especially true for Excel files, as a minor keystroke error while displaying an Excel file can affect the formulas of an entire spreadsheet calling into question all the calculations and totals. Having the file in PDF format also has the advantage of allowing the use of the LIT SUITE annotation tools, allowing you to redact, highlight, and callout different sections.