Don't mention 3D references in the docs (#1338)

Don't mention 3D references in the docs. In some cases they work but we don't officially support them.
handsontable · Dec 13, 2023 · 4230e82 · 4230e82
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diff --git a/docs/guide/cell-references.md b/docs/guide/cell-references.md
@@ -57,7 +57,7 @@ different cells in the workbook.
 
 ### Referring to named expressions
 
-This is a special case in HyperFormula. Upon creation you define the
+This is a special case in HyperFormula. Upon creation, you define the
 scope of the expression:
 
 ```javascript
@@ -166,28 +166,27 @@ In HyperFormula, a range is a reference to a group of at least two adjacent cell
 
 ### Range definition
 
-Range `<Cell address 1>:<Cell address 2>` is a reference to the smallest possible group of adjacent cells that includes:
+Range `<Cell address 1>:<Cell address 2>` is a reference to the smallest rectangular group of adjacent cells that includes:
 
 - The cell at `<Cell address 1>`
 - The cell at `<Cell address 2>`
-- If referencing across different sheets (so-called 3D reference): all cells on all sheets between `<Cell address 1>` and `<Cell address 2>`
 
 ### Range types
 
 HyperFormula features the following types of ranges:
 
 | Range type   | Description                         | Example                                       |
-| ------------ | ----------------------------------- | --------------------------------------------- |
+|--------------|-------------------------------------|-----------------------------------------------|
 | Cell range   | Has the shape of a finite rectangle | =A1:B2<br>or =A2:B1<br>or =B1:A2<br>or =B2:A1 |
 | Column range | Contains entire columns             | =A:B<br>or =B:A                               |
 | Row range    | Contains entire rows                | =1:2<br>or =2:1                               |
 
 ### Referencing ranges
 
 You can reference ranges:
-- Through relative references (=A1:B2)
-- Through absolute references (=A$1:$B$2)
-- Across different sheets (=Sheet1!A1:Sheet5!B2)<br>If you don't specify a sheet name for the second cell address, the sheet name of the first cell address is used: `=Sheet5!A1:B2` is equivalent to `=Sheet5!A1:Sheet5!B2`.
+- Through a relative reference, e.g. `=A1:B2`
+- Through an absolute reference, e.g. `=A$1:$B$2`
+- Through a reference with an explicit sheet address, e.g. `=Sheet5!A1:B2`
 
 ### Range restraints
 
@@ -228,7 +227,7 @@ used in a cell.
 Consider the following example:
 
 | Formula in C1 | Action          | Result in B1 |
-| :------------ | :-------------- | :----------- |
+|:--------------|:----------------|:-------------|
 | =A1+B1+20     | Delete column A | #REF!        |
 
 The #REF! error may also occur in other specific situations:

diff --git a/docs/guide/named-expressions.md b/docs/guide/named-expressions.md
@@ -27,7 +27,7 @@ follows:
 | Type                    | Custom name | Example expression        |
 |:------------------------|:------------|:--------------------------|
 | Named cell              | myCell      | =Sheet1!$A$1              |
-| Named range of cells    | myRange     | =Sheet1!$A$1:Sheet1!$D$10 |
+| Named range of cells    | myRange     | =Sheet1!$A$1:$D$10        |
 | Named constant (number) | myNumber    | =10                       |
 | Named constant (string) | myText      | ="One Small Step for Man" |
 | Named formula           | myFormula   | =SUM(Sheet1!$A$1:$D$10)   |
@@ -59,19 +59,19 @@ hfInstance.addNamedExpression('MyRevenue', '=Sheet2!$A$1+100', 1);
 
 For examples of valid and invalid expression names, see the following table:
 
-| Name         | Validity |
-| :----------- | :------- |
-| my Revenue   | Invalid  |
-| myRevenue    | Valid    |
-| quarter1     | Invalid  |
-| quarter_1    | Valid    |
-| 1stQuarter   | Invalid  |
+| Name        | Validity |
+|:------------|:---------|
+| my Revenue  | Invalid  |
+| myRevenue   | Valid    |
+| quarter1    | Invalid  |
+| quarter_1   | Valid    |
+| 1stQuarter  | Invalid  |
 | _1stQuarter | Valid    |
-| .NET         | Invalid  |
-| ASP.NET      | Valid    |
-| A1           | Invalid  |
-| $A$1         | Invalid  |
-| RC           | Invalid  |
+| .NET        | Invalid  |
+| ASP.NET     | Valid    |
+| A1          | Invalid  |
+| $A$1        | Invalid  |
+| RC          | Invalid  |
 
 ## Available methods