diff --git a/spreadsheets.qmd b/spreadsheets.qmd
index 59e4c64de..25db5a0ee 100644
--- a/spreadsheets.qmd
+++ b/spreadsheets.qmd
@@ -347,7 +347,7 @@ You can write data back to disk as an Excel file using the `write_xlsx()` functi
 ```{r}
 #| eval: false
 
-write_xlsx(bake_sale, path = "data/bake_sale.xlsx")
+write_xlsx(bake_sale, path = "data/bake-sale.xlsx")
 ```
 
 @fig-bake-sale-excel shows what the data looks like in Excel.
@@ -359,7 +359,7 @@ These can be turned off by setting `col_names` and `format_headers` arguments to
 #| echo: false
 #| fig-width: 5
 #| fig-cap: |
-#|   Spreadsheet called bake_sale.xlsx in Excel.
+#|   Spreadsheet called bake-sale.xlsx in Excel.
 #| fig-alt: |
 #|   Bake sale data frame created earlier in Excel.
 
@@ -371,7 +371,7 @@ This makes Excel files unreliable for caching interim results as well.
 For alternatives, see @sec-writing-to-a-file.
 
 ```{r}
-read_excel("data/bake_sale.xlsx")
+read_excel("data/bake-sale.xlsx")
 ```
 
 ### Formatted output