diff --git a/docz/docs/05-interface.md b/docz/docs/05-interface.md
index cf9ff0c..0106a4e 100644
--- a/docz/docs/05-interface.md
+++ b/docz/docs/05-interface.md
@@ -34,8 +34,18 @@ Write options are described in the [Writing Options](./api/write-options) sectio
## Utilities
-Utilities are available in the `XLSX.utils` object and are described in the
-[Utility Functions](./api/utilities) section:
+Utilities are available in the `XLSX.utils` object.
+
+The following are described in [A1 Utilities](./csf/general#a1-utilities)
+
+**Cell and cell address manipulation:**
+
+- `encode_row / decode_row` converts between 0-indexed rows and 1-indexed rows.
+- `encode_col / decode_col` converts between 0-indexed columns and column names.
+- `encode_cell / decode_cell` converts cell addresses.
+- `encode_range / decode_range` converts cell ranges.
+
+The following are described in the [Utility Functions](./api/utilities):
**Constructing:**
@@ -60,11 +70,6 @@ Utilities are available in the `XLSX.utils` object and are described in the
- `sheet_to_formulae` generates a list of the formulae (with value fallbacks).
-**Cell and cell address manipulation:**
+**Miscellaneous**
- `format_cell` generates the text value for a cell (using number formats).
-- `encode_row / decode_row` converts between 0-indexed rows and 1-indexed rows.
-- `encode_col / decode_col` converts between 0-indexed columns and column names.
-- `encode_cell / decode_cell` converts cell addresses.
-- `encode_range / decode_range` converts cell ranges.
-
diff --git a/docz/docs/07-csf/01-general.md b/docz/docs/07-csf/01-general.md
index 36d690c..d88f984 100644
--- a/docz/docs/07-csf/01-general.md
+++ b/docz/docs/07-csf/01-general.md
@@ -2,153 +2,157 @@
sidebar_position: 1
---
-# Core Concepts
+# Addresses and Ranges
The "Common Spreadsheet Format" (CSF) is the object model used by SheetJS.
-## Cell Addresses and Ranges
+## Cell Addresses
Cell address objects are stored as `{c:C, r:R}` where `C` and `R` are 0-indexed
column and row numbers, respectively. For example, the cell address `B5` is
represented by the object `{c:1, r:4}`.
+## Cell Ranges
+
Cell range objects are stored as `{s:S, e:E}` where `S` is the first cell and
`E` is the last cell in the range. The ranges are inclusive. For example, the
range `A3:B7` is represented by the object `{s:{c:0, r:2}, e:{c:1, r:6}}`.
-Utility functions perform a row-major order walk traversal of a sheet range:
+
+### Column and Row Ranges
+
+A column range (spanning every row) is represented with the starting row `0` and
+the ending row `1048575`:
```js
-for(var R = range.s.r; R <= range.e.r; ++R) {
- for(var C = range.s.c; C <= range.e.c; ++C) {
- var cell_address = {c:C, r:R};
- /* if an A1-style address is needed, encode the address */
- var cell_ref = XLSX.utils.encode_cell(cell_address);
- }
-}
+{ s: { c: 0, r: 0 }, e: { c: 0, r: 1048575 } } // A:A
+{ s: { c: 1, r: 0 }, e: { c: 2, r: 1048575 } } // B:C
```
-## Cell Object
-
-Cell objects are plain JS objects with keys and values following the convention:
-
-| Key | Description |
-| --- | ---------------------------------------------------------------------- |
-| | **Core Cell Properties** ([More Info](#data-types)) |
-| `v` | raw value (number, string, Date object, boolean) |
-| `t` | type: `b` Boolean, `e` Error, `n` Number, `d` Date, `s` Text, `z` Stub |
-| | **Number Formats** ([More Info](./features#number-formats)) |
-| `z` | number format string associated with the cell (if requested) |
-| `w` | formatted text (if applicable) |
-| | **Formulae** ([More Info](./features/formulae)) |
-| `f` | cell formula encoded as an A1-style string (if applicable) |
-| `F` | range of enclosing array if formula is array formula (if applicable) |
-| `D` | if true, array formula is dynamic (if applicable) |
-| | **Other Cell Properties** ([More Info](./features)) |
-| `l` | cell hyperlink and tooltip ([More Info](./features/hyperlinks)) |
-| `c` | cell comments ([More Info](./features#cell-comments)) |
-| `r` | rich text encoding (if applicable) |
-| `h` | HTML rendering of the rich text (if applicable) |
-| `s` | the style/theme of the cell (if applicable) |
-
-Built-in export utilities (such as the CSV exporter) will use the `w` text if it
-is available. To change a value, be sure to delete `cell.w` (or set it to
-`undefined`) before attempting to export. The utilities will regenerate the `w`
-text from the number format (`cell.z`) and the raw value if possible.
-
-The actual array formula is stored in the `f` field of the first cell in the
-array range. Other cells in the range will omit the `f` field.
-
-### Data Types
-
-The raw value is stored in the `v` value property, interpreted based on the `t`
-type property. This separation allows for representation of numbers as well as
-numeric text. There are 6 valid cell types:
-
-| Type | Description |
-| :--: | :-------------------------------------------------------------------- |
-| `b` | Boolean: value interpreted as JS `boolean` |
-| `e` | Error: value is a numeric code and `w` property stores common name ** |
-| `n` | Number: value is a JS `number` ** |
-| `d` | Date: value is a JS `Date` object or string to be parsed as Date ** |
-| `s` | Text: value interpreted as JS `string` and written as text ** |
-| `z` | Stub: blank stub cell that is ignored by data processing utilities ** |
-
-
- Error values and interpretation (click to show)
-
-| Value | Error Meaning |
-| -----: | :-------------- |
-| `0x00` | `#NULL!` |
-| `0x07` | `#DIV/0!` |
-| `0x0F` | `#VALUE!` |
-| `0x17` | `#REF!` |
-| `0x1D` | `#NAME?` |
-| `0x24` | `#NUM!` |
-| `0x2A` | `#N/A` |
-| `0x2B` | `#GETTING_DATA` |
-
-
-
-Type `n` is the Number type. This includes all forms of data that Excel stores
-as numbers, such as dates/times and Boolean fields. Excel exclusively uses data
-that can be fit in an IEEE754 floating point number, just like JS Number, so the
-`v` field holds the raw number. The `w` field holds formatted text. Dates are
-stored as numbers by default and converted with `XLSX.SSF.parse_date_code`.
-
-Type `d` is the Date type, generated only when the option `cellDates` is passed.
-Since JSON does not have a natural Date type, parsers are generally expected to
-store ISO 8601 Date strings like you would get from `date.toISOString()`. On
-the other hand, writers and exporters should be able to handle date strings and
-JS Date objects. Note that Excel disregards timezone modifiers and treats all
-dates in the local timezone. The library does not correct for this error.
-
-Type `s` is the String type. Values are explicitly stored as text. Excel will
-interpret these cells as "number stored as text". Generated Excel files
-automatically suppress that class of error, but other formats may elicit errors.
-
-Type `z` represents blank stub cells. They are generated in cases where cells
-have no assigned value but hold comments or other metadata. They are ignored by
-the core library data processing utility functions. By default these cells are
-not generated; the parser `sheetStubs` option must be set to `true`.
-
-
-#### Dates
-
-
- Excel Date Code details (click to show)
-
-By default, Excel stores dates as numbers with a format code that specifies date
-processing. For example, the date `19-Feb-17` is stored as the number `42785`
-with a number format of `d-mmm-yy`. The `SSF` module understands number formats
-and performs the appropriate conversion.
-
-XLSX also supports a special date type `d` where the data is an ISO 8601 date
-string. The formatter converts the date back to a number.
-
-The default behavior for all parsers is to generate number cells. Setting
-`cellDates` to true will force the generators to store dates.
-
-
-
-
- Time Zones and Dates (click to show)
-
-Excel has no native concept of universal time. All times are specified in the
-local time zone. Excel limitations prevent specifying true absolute dates.
-
-Following Excel, this library treats all dates as relative to local time zone.
-
-
-
-
- Epochs: 1900 and 1904 (click to show)
-
-Excel supports two epochs (January 1 1900 and January 1 1904).
-The workbook's epoch can be determined by examining the workbook's
-`wb.Workbook.WBProps.date1904` property:
+A row range (spanning every column) is represented with the starting col `0` and
+the ending col `16383`:
```js
-!!(((wb.Workbook||{}).WBProps||{}).date1904)
+{ s: { c: 0, r: 0 }, e: { c: 16383, r: 0 } } // 1:1
+{ s: { c: 0, r: 1 }, e: { c: 16383, r: 2 } } // 2:3
```
-
+# Common Spreadsheet Address Styles
+
+## A1-Style
+
+A1-style is the default address style in Lotus 1-2-3 and Excel.
+
+Columns are specified with letters, counting from `A` to `Z`, then `AA` to `ZZ`,
+then `AAA`. Some sample values, along with SheetJS column indices, are listed:
+
+| Ordinal | A1 Name | SheetJS |
+|:--------|:--------|--------:|
+| First | `A` | `0` |
+| Second | `B` | `1` |
+| 26th | `Z` | `25` |
+| 27th | `AA` | `26` |
+| 702st | `ZZ` | `701` |
+| 703rd | `AAA` | `702` |
+| 16384th | `XFD` | `16383` |
+
+Rows are specified with numbers, starting from `1` for the first row. SheetJS
+APIs that take row indices start from `0` (ECMAScript convention).
+
+A cell address is the concatenation of column text and row number. For example,
+the cell in the third column and fourth row is "C4".
+
+A cell range is represented as the top-left cell of the range, followed by `:`,
+followed by the bottom-right cell of the range. For example, the range `"C2:D4"`
+includes 6 cells marked with ▒ in the table below:
+
+
+ | | A | B | C | D | E |
|---|
+ | 1 | | | | | |
|---|
+ | 2 | | | ▒ | ▒ | |
|---|
+ | 3 | | | ▒ | ▒ | |
|---|
+ | 4 | | | ▒ | ▒ | |
|---|
+ | 5 | | | | | |
|---|
+
+
+A column range is represented by the left-most column, followed by `:`, followed
+by the right-most column. For example, the range `C:D` represents the third and
+fourth columns.
+
+A row range is represented by the top-most row, followed by `:`, followed by the
+bottom-most column. For example, `2:4` represents the second/third/fourth rows.
+
+### A1 Utilities
+
+#### Column Names
+
+_Get the SheetJS index from an A1-Style column_
+
+```js
+var col_index = XLSX.utils.decode_col("D");
+```
+
+The argument is expected to be a string representing a column.
+
+_Get the A1-Style column string from a SheetJS index_
+
+```js
+var col_name = XLSX.utils.encode_col(3);
+```
+
+The argument is expected to be a SheetJS column (non-negative integer).
+
+#### Row Names
+
+_Get the SheetJS index from an A1-Style row_
+
+```js
+var row_index = XLSX.utils.decode_row("4");
+```
+
+The argument is expected to be a string representing a row.
+
+_Get the A1-Style row string from a SheetJS index_
+
+```js
+var row_name = XLSX.utils.encode_row(3);
+```
+
+The argument is expected to be a SheetJS column (non-negative integer).
+
+#### Cell Addresses
+
+_Generate a SheetJS cell address from an A1-Style address string_
+
+```js
+var address = XLSX.utils.decode_cell("A2");
+```
+
+The argument is expected to be a string representing a single cell address.
+
+_Generate an A1-style address string from a SheetJS cell address_
+
+```js
+var a1_addr = XLSX.utils.encode_cell({r:1, c:0});
+```
+
+The argument is expected to be a SheetJS cell address
+
+#### Cell Ranges
+
+_Generate a SheetJS cell range from an A1-style range string_
+
+```js
+var range = XLSX.utils.decode_range("A1:D3");
+```
+
+The argument is expected to be a string representing a range or a single cell
+address. The single cell address is interpreted as a single cell range, so
+`XLSX.utils.decode_range("D3")` is the same as `XLSX.utils.decode_range("D3:D3")`
+
+_Generate an A1-style address string from a SheetJS cell address_
+
+```js
+var a1_range = XLSX.utils.encode_range({ s: { c: 0, r: 0 }, e: { c: 3, r: 2 } });
+```
+
+The argument is expected to be a SheetJS cell range.
diff --git a/docz/docs/07-csf/02-cell.md b/docz/docs/07-csf/02-cell.md
new file mode 100644
index 0000000..cccb383
--- /dev/null
+++ b/docz/docs/07-csf/02-cell.md
@@ -0,0 +1,129 @@
+---
+sidebar_position: 2
+---
+
+# Cell Object
+
+Cell objects are plain JS objects with keys and values following the convention:
+
+| Key | Description |
+| --- | ---------------------------------------------------------------------- |
+| | **Core Cell Properties** ([More Info](#data-types)) |
+| `v` | raw value (number, string, Date object, boolean) |
+| `t` | type: `b` Boolean, `e` Error, `n` Number, `d` Date, `s` Text, `z` Stub |
+| | **Number Formats** ([More Info](./features#number-formats)) |
+| `z` | number format string associated with the cell (if requested) |
+| `w` | formatted text (if applicable) |
+| | **Formulae** ([More Info](./features/formulae)) |
+| `f` | cell formula encoded as an A1-style string (if applicable) |
+| `F` | range of enclosing array if formula is array formula (if applicable) |
+| `D` | if true, array formula is dynamic (if applicable) |
+| | **Other Cell Properties** ([More Info](./features)) |
+| `l` | cell hyperlink and tooltip ([More Info](./features/hyperlinks)) |
+| `c` | cell comments ([More Info](./features#cell-comments)) |
+| `r` | rich text encoding (if applicable) |
+| `h` | HTML rendering of the rich text (if applicable) |
+| `s` | the style/theme of the cell (if applicable) |
+
+Built-in export utilities (such as the CSV exporter) will use the `w` text if it
+is available. To change a value, be sure to delete `cell.w` (or set it to
+`undefined`) before attempting to export. The utilities will regenerate the `w`
+text from the number format (`cell.z`) and the raw value if possible.
+
+The actual array formula is stored in the `f` field of the first cell in the
+array range. Other cells in the range will omit the `f` field.
+
+### Data Types
+
+The raw value is stored in the `v` value property, interpreted based on the `t`
+type property. This separation allows for representation of numbers as well as
+numeric text. There are 6 valid cell types:
+
+| Type | Description |
+| :--: | :-------------------------------------------------------------------- |
+| `b` | Boolean: value interpreted as JS `boolean` |
+| `e` | Error: value is a numeric code and `w` property stores common name ** |
+| `n` | Number: value is a JS `number` ** |
+| `d` | Date: value is a JS `Date` object or string to be parsed as Date ** |
+| `s` | Text: value interpreted as JS `string` and written as text ** |
+| `z` | Stub: blank stub cell that is ignored by data processing utilities ** |
+
+
+ Error values and interpretation (click to show)
+
+| Value | Error Meaning |
+| -----: | :-------------- |
+| `0x00` | `#NULL!` |
+| `0x07` | `#DIV/0!` |
+| `0x0F` | `#VALUE!` |
+| `0x17` | `#REF!` |
+| `0x1D` | `#NAME?` |
+| `0x24` | `#NUM!` |
+| `0x2A` | `#N/A` |
+| `0x2B` | `#GETTING_DATA` |
+
+
+
+Type `n` is the Number type. This includes all forms of data that Excel stores
+as numbers, such as dates/times and Boolean fields. Excel exclusively uses data
+that can be fit in an IEEE754 floating point number, just like JS Number, so the
+`v` field holds the raw number. The `w` field holds formatted text. Dates are
+stored as numbers by default and converted with `XLSX.SSF.parse_date_code`.
+
+Type `d` is the Date type, generated only when the option `cellDates` is passed.
+Since JSON does not have a natural Date type, parsers are generally expected to
+store ISO 8601 Date strings like you would get from `date.toISOString()`. On
+the other hand, writers and exporters should be able to handle date strings and
+JS Date objects. Note that Excel disregards timezone modifiers and treats all
+dates in the local timezone. The library does not correct for this error.
+
+Type `s` is the String type. Values are explicitly stored as text. Excel will
+interpret these cells as "number stored as text". Generated Excel files
+automatically suppress that class of error, but other formats may elicit errors.
+
+Type `z` represents blank stub cells. They are generated in cases where cells
+have no assigned value but hold comments or other metadata. They are ignored by
+the core library data processing utility functions. By default these cells are
+not generated; the parser `sheetStubs` option must be set to `true`.
+
+
+#### Dates
+
+
+ Excel Date Code details (click to show)
+
+By default, Excel stores dates as numbers with a format code that specifies date
+processing. For example, the date `19-Feb-17` is stored as the number `42785`
+with a number format of `d-mmm-yy`. The `SSF` module understands number formats
+and performs the appropriate conversion.
+
+XLSX also supports a special date type `d` where the data is an ISO 8601 date
+string. The formatter converts the date back to a number.
+
+The default behavior for all parsers is to generate number cells. Setting
+`cellDates` to true will force the generators to store dates.
+
+
+
+
+ Time Zones and Dates (click to show)
+
+Excel has no native concept of universal time. All times are specified in the
+local time zone. Excel limitations prevent specifying true absolute dates.
+
+Following Excel, this library treats all dates as relative to local time zone.
+
+
+
+
+ Epochs: 1900 and 1904 (click to show)
+
+Excel supports two epochs (January 1 1900 and January 1 1904).
+The workbook's epoch can be determined by examining the workbook's
+`wb.Workbook.WBProps.date1904` property:
+
+```js
+!!(((wb.Workbook||{}).WBProps||{}).date1904)
+```
+
+
diff --git a/docz/docs/07-csf/02-sheet.md b/docz/docs/07-csf/03-sheet.md
similarity index 99%
rename from docz/docs/07-csf/02-sheet.md
rename to docz/docs/07-csf/03-sheet.md
index 9d5e6a3..5cb6752 100644
--- a/docz/docs/07-csf/02-sheet.md
+++ b/docz/docs/07-csf/03-sheet.md
@@ -1,5 +1,5 @@
---
-sidebar_position: 2
+sidebar_position: 3
---
# Sheet Objects
diff --git a/docz/docs/07-csf/03-book.md b/docz/docs/07-csf/04-book.md
similarity index 97%
rename from docz/docs/07-csf/03-book.md
rename to docz/docs/07-csf/04-book.md
index ee9065c..8373791 100644
--- a/docz/docs/07-csf/03-book.md
+++ b/docz/docs/07-csf/04-book.md
@@ -1,5 +1,5 @@
---
-sidebar_position: 3
+sidebar_position: 4
---
# Workbook Object
@@ -19,8 +19,7 @@ standard, XLS parsing stores core properties in both places.
The various file formats use different internal names for file properties. The
workbook `Props` object normalizes the names:
-
- File Properties (click to show)
+File Properties (click to hide)
| JS Name | Excel Description |
|:--------------|:-------------------------------|
diff --git a/docz/docs/07-csf/07-features/01-formulae.md b/docz/docs/07-csf/07-features/01-formulae.md
index 89d826e..460424e 100644
--- a/docz/docs/07-csf/07-features/01-formulae.md
+++ b/docz/docs/07-csf/07-features/01-formulae.md
@@ -104,50 +104,7 @@ The A1-style formula string is stored in the `f` field of the cell object.
Spreadsheet software typically represent formulae with a leading `=` sign, but
SheetJS formulae omit the `=`.
-What is A1-style? (click to show)
-
-A1-style is the default in Excel.
-
-Columns are specified with letters, counting from `A` to `Z`, then `AA` to `ZZ`,
-then `AAA`. Some sample values, along with SheetJS column indices, are listed:
-
-| Ordinal | A1 Name | SheetJS |
-|:--------|:--------|--------:|
-| First | `A` | `0` |
-| Second | `B` | `1` |
-| 26th | `Z` | `25` |
-| 27th | `AA` | `26` |
-| 702st | `ZZ` | `701` |
-| 703rd | `AAA` | `702` |
-| 16384th | `XFD` | `16383` |
-
-Rows are specified with numbers, starting from `1` for the first row. SheetJS
-APIs that take row indices start from `0` (ECMAScript convention).
-
-A cell address is the concatenation of column text and row number. For example,
-the cell in the third column and fourth row is "C4".
-
-A cell range is represented as the top-left cell of the range, followed by `:`,
-followed by the bottom-right cell of the range. For example, the range `"C2:D4"`
-includes 6 cells marked with ▒ in the table below:
-
-
- | A | B | C | D | E |
|---|
- | 1 | | | | | |
|---|
- | 2 | | | ▒ | ▒ | |
|---|
- | 3 | | | ▒ | ▒ | |
|---|
- | 4 | | | ▒ | ▒ | |
|---|
- | 5 | | | | | |
|---|
-
-
-A column range is represented by the left-most column, followed by `:`, followed
-by the right-most column. For example, the range `C:D` represents the third and
-fourth columns.
-
-A row range is represented by the top-most row, followed by `:`, followed by the
-bottom-most column. For example, `2:4` represents the second/third/fourth rows.
-
-