diff --git a/.gitattributes b/.gitattributes
index 1812f0d..c5b4ff3 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -19,5 +19,9 @@
 # Documentation
 *.md text diff=markdown
 
+# Engineering documents -- binary, do not diff or merge
+docs/*.docx binary
+docs/*.xlsx binary
+
 # Binary / generated -- do not diff
-Cargo.lock linguist-generated=true
+Cargo.lock linguist-generated=true
\ No newline at end of file
diff --git a/docs/anvil-project-summary.docx b/docs/anvil-project-summary.docx
new file mode 100644
index 0000000..9b55b0f
Binary files /dev/null and b/docs/anvil-project-summary.docx differ
diff --git a/docs/anvil-requirements.docx b/docs/anvil-requirements.docx
new file mode 100644
index 0000000..17a4df7
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diff --git a/docs/anvil-sdd.docx b/docs/anvil-sdd.docx
new file mode 100644
index 0000000..28b842c
Binary files /dev/null and b/docs/anvil-sdd.docx differ
diff --git a/docs/anvil-test-strategy.docx b/docs/anvil-test-strategy.docx
new file mode 100644
index 0000000..44d14e2
Binary files /dev/null and b/docs/anvil-test-strategy.docx differ
diff --git a/docs/anvil-traceability-matrix.xlsx b/docs/anvil-traceability-matrix.xlsx
new file mode 100644
index 0000000..a2b017f
Binary files /dev/null and b/docs/anvil-traceability-matrix.xlsx differ