Comparing PDF documents exported by MS Excel and by SpreadProcessing shows slightly different sizes of the cells.

In Excel, this is done by setting this option on the format cells dialog, the protection tab. It allows you to hide the formula when the sheet is protected. 

SpreadProcessing: XlsFormatProvider. Exception when importing a specific document - bad function index (188)

Add support for the  CELL formula.

 A long formula is wrongly parsed when importing a particular file.

Currently, the following text filters are not supported in the model:

• begins with
• does not begin with
• ends with
• does not end with
• contains
• does not contain

Exception when the comments are imported before the fallback notes.

Wrong color scheme colors leads to wrong cell coloring on export.

InvalidCastException on import when a drawing in a document contains the "ext" tag 

Inserting new rows above rows containing hyperlinks breaks the hyperlinks.

The XlsxFormatProvider could throw FormatException: 'Input string was not in a correct format.' while parsing a color definition. Suppress such errors so that the document can be imported and use default values for the colors.

When a cell contains a lot of empty lines the last line is not rendered correctly.

Images don't move with cells when a row/column is inserted.

When a file with a format string of the type "\m\:0.#;\m\:0.#;\m\:0.#;\m\:\ @" is imported, argument exception is thrown.

A conditional formatting rule with a custom formula is lost when importing a file generated from Microsoft Excel.

If the column has a text format set and has a mixture of text and numbers, the numbers should be exported as text as well.

SpreadProcessing: feature request to add IEnumerable<T> Interface(LINQ) implementation with CellSelection

KeyNotFoundException: when iterating cells having a disabled 'Normal font' formatting option.

In some cases, horizontal bar chart cannot be loaded correctly. This leads to issue when opening the document with the RadSpreadsheet for WPF control.

Handle import of documents with invalid elements in 'x:fonts'.